c0edc415e1c08532783562faf5434e866087e82e257283fc3b0bb0081b040f24

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7v20201028
submitted
26-02-2021 08:18

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General

Target

Doc_498575947594986494659499465848658484846584,pdf.exe
Size

78KB
MD5

31a018d815f0d317b090665f3c4050e8
SHA1

976a5037b21e53bd265a9b82271db389be0279ff
SHA256

c0edc415e1c08532783562faf5434e866087e82e257283fc3b0bb0081b040f24
SHA512

e29ae8b6a24206d59cdce3f0a120cc7931c07100f2ace1cab2ad54967c9efe47f958c665101ac6e2e68132d4a0fba1d7a19eabe952eaf6baeb7033a794f60ccd

Score

10^/10

evasion persistence trojan

Malware Config

Signatures

UAC bypass 3 TTPs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Windows security modification 2 TTPs 4 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

Doc_498575947594986494659499465848658484846584,pdf.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths	Doc_498575947594986494659499465848658484846584,pdf.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions	Doc_498575947594986494659499465848658484846584,pdf.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\Doc_498575947594986494659499465848658484846584,pdf.exe = "0"	Doc_498575947594986494659499465848658484846584,pdf.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\Resources\Themes\LoUxJKxBIXRbWxWbCDaC\svchost.exe = "0"	Doc_498575947594986494659499465848658484846584,pdf.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Doc_498575947594986494659499465848658484846584,pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\PSTfNAqVLebZItueiPxMAb = "explorer.exe \"C:\\Windows\\Resources\\Themes\\LoUxJKxBIXRbWxWbCDaC\\svchost.exe\""	Doc_498575947594986494659499465848658484846584,pdf.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

Doc_498575947594986494659499465848658484846584,pdf.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Doc_498575947594986494659499465848658484846584,pdf.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Doc_498575947594986494659499465848658484846584,pdf.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 12 IoCs

Processes:

Doc_498575947594986494659499465848658484846584,pdf.exe

pid	process
1732	Doc_498575947594986494659499465848658484846584,pdf.exe
1732	Doc_498575947594986494659499465848658484846584,pdf.exe
1732	Doc_498575947594986494659499465848658484846584,pdf.exe
1732	Doc_498575947594986494659499465848658484846584,pdf.exe
1732	Doc_498575947594986494659499465848658484846584,pdf.exe
1732	Doc_498575947594986494659499465848658484846584,pdf.exe
1732	Doc_498575947594986494659499465848658484846584,pdf.exe
1732	Doc_498575947594986494659499465848658484846584,pdf.exe
1732	Doc_498575947594986494659499465848658484846584,pdf.exe
1732	Doc_498575947594986494659499465848658484846584,pdf.exe
1732	Doc_498575947594986494659499465848658484846584,pdf.exe
1732	Doc_498575947594986494659499465848658484846584,pdf.exe

Drops file in Windows directory 2 IoCs

Processes:

Doc_498575947594986494659499465848658484846584,pdf.exe

description	ioc	process
File created	C:\Windows\Resources\Themes\LoUxJKxBIXRbWxWbCDaC\svchost.exe	Doc_498575947594986494659499465848658484846584,pdf.exe
File opened for modification	C:\Windows\Resources\Themes\LoUxJKxBIXRbWxWbCDaC\svchost.exe	Doc_498575947594986494659499465848658484846584,pdf.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

848 timeout.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

powershell.exepowershell.exeDoc_498575947594986494659499465848658484846584,pdf.exe

pid process

1708 powershell.exe
1292 powershell.exe
1708 powershell.exe
1292 powershell.exe
1732 Doc_498575947594986494659499465848658484846584,pdf.exe

pid	process
848	timeout.exe

pid	process
1708	powershell.exe
1292	powershell.exe
1708	powershell.exe
1292	powershell.exe
1732	Doc_498575947594986494659499465848658484846584,pdf.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Doc_498575947594986494659499465848658484846584,pdf.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1732	Doc_498575947594986494659499465848658484846584,pdf.exe
Token: SeDebugPrivilege	1708	powershell.exe
Token: SeDebugPrivilege	1292	powershell.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

Doc_498575947594986494659499465848658484846584,pdf.execmd.exe

description	pid	process	target process
PID 1732 wrote to memory of 1292	1732	Doc_498575947594986494659499465848658484846584,pdf.exe	powershell.exe
PID 1732 wrote to memory of 1292	1732	Doc_498575947594986494659499465848658484846584,pdf.exe	powershell.exe
PID 1732 wrote to memory of 1292	1732	Doc_498575947594986494659499465848658484846584,pdf.exe	powershell.exe
PID 1732 wrote to memory of 1292	1732	Doc_498575947594986494659499465848658484846584,pdf.exe	powershell.exe
PID 1732 wrote to memory of 1708	1732	Doc_498575947594986494659499465848658484846584,pdf.exe	powershell.exe
PID 1732 wrote to memory of 1708	1732	Doc_498575947594986494659499465848658484846584,pdf.exe	powershell.exe
PID 1732 wrote to memory of 1708	1732	Doc_498575947594986494659499465848658484846584,pdf.exe	powershell.exe
PID 1732 wrote to memory of 1708	1732	Doc_498575947594986494659499465848658484846584,pdf.exe	powershell.exe
PID 1732 wrote to memory of 1628	1732	Doc_498575947594986494659499465848658484846584,pdf.exe	cmd.exe
PID 1732 wrote to memory of 1628	1732	Doc_498575947594986494659499465848658484846584,pdf.exe	cmd.exe
PID 1732 wrote to memory of 1628	1732	Doc_498575947594986494659499465848658484846584,pdf.exe	cmd.exe
PID 1732 wrote to memory of 1628	1732	Doc_498575947594986494659499465848658484846584,pdf.exe	cmd.exe
PID 1628 wrote to memory of 848	1628	cmd.exe	timeout.exe
PID 1628 wrote to memory of 848	1628	cmd.exe	timeout.exe
PID 1628 wrote to memory of 848	1628	cmd.exe	timeout.exe
PID 1628 wrote to memory of 848	1628	cmd.exe	timeout.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

Processes:

Doc_498575947594986494659499465848658484846584,pdf.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	Doc_498575947594986494659499465848658484846584,pdf.exe

C:\Users\Admin\AppData\Local\Temp\Doc_498575947594986494659499465848658484846584,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Doc_498575947594986494659499465848658484846584,pdf.exe"
1⤵
- Windows security modification
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1732

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Doc_498575947594986494659499465848658484846584,pdf.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1292

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Windows\Resources\Themes\LoUxJKxBIXRbWxWbCDaC\svchost.exe" -Force
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1708

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout 1
2⤵
- Suspicious use of WriteProcessMemory
PID:1628

C:\Windows\SysWOW64\timeout.exe
timeout 1
3⤵
- Delays execution with timeout.exe
PID:848

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_2b788606-85a8-4fd6-affd-2e969bc4be00
MD5
7f79b990cb5ed648f9e583fe35527aa7

SHA1
71b177b48c8bd745ef02c2affad79ca222da7c33

SHA256
080ec69d3f2abac629a0bdc314f150ad42a9a1b0a031b1d5c7b5b80051c48683

SHA512
20926edf7f0b990da4bd8d7ba91bd8bf7b952b75080f687afa7197a91777604688303d38b4a0a7240b558c23f2e0cd927d3590765109f8be0551f5eb050eafda

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_3bf4f350-86fe-486e-8b87-41ab96d0ad9c
MD5
b6d38f250ccc9003dd70efd3b778117f

SHA1
d5a17c02cac698d4f0a4a9b7d71db2aa19e3f18a

SHA256
4de9d7b5ccab7b67ca8efc83084c7ee6e5e872b7216ed4683bc5da950bf41265

SHA512
67d8195836b7f280d3f9219fd0f58276342e55d5dfdd8a4c54355030d96685d73f1b2b6da0eb39322ec7c3a1d1c5ef06b52d22646cea30a96f822de1800d31e9

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_4408bb97-19ee-4815-b02c-5a0939dddad8
MD5
df44874327d79bd75e4264cb8dc01811

SHA1
1396b06debed65ea93c24998d244edebd3c0209d

SHA256
55de642c5c9e436ec01c57004dae797022442c3245daf7162d19a5585f221181

SHA512
95dc9298b8db059bbe746f67e6a7f8515781c7053cc60c01532e47623a996be7e1bd23d1bd8f5f2045adff27454f44930d503c15b695690088841cedbd2a06c3

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_4f3734d9-795b-4900-ae33-f88364e95548
MD5
354b8209f647a42e2ce36d8cf326cc92

SHA1
98c3117f797df69935f8b09fc9e95accfe3d8346

SHA256
feae405d288fdd38438f9d9b54f791f3ce3805f1bb88780da5aca402ad372239

SHA512
420be869b58e9a7a2c31f2550ac269df832935692a6431d455a10d9b426781e79d91e30ace2c465633b8a7ff2be1bf49734d8b99a390090dc4b36411d4391ff0

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_644b5728-e9b5-45ab-9104-7136ec814422
MD5
be4d72095faf84233ac17b94744f7084

SHA1
cc78ce5b9c57573bd214a8f423ee622b00ebb1ec

SHA256
b0d72c5c22e57913476ac8fc686a4593f137c6667d5094522c0a0685dabd7adc

SHA512
43856e9b1032b8690ceea810c931bed3655e9190414bb220fb6afc136f31b8335e07604dffb28405d4006f266a54cff424c527d29924b1b732c9647a3252b097

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6532a425-51ae-4577-837f-c6e09d9fcfcf
MD5
75a8da7754349b38d64c87c938545b1b

SHA1
5c28c257d51f1c1587e29164cc03ea880c21b417

SHA256
bf08151c174b5d00c9dbc7907b2c6a01b4be76bfa3afce1e8bd98a04ad833c96

SHA512
798797bc74c56c874e9a5fdcb0157c04e37a1b3cce285ef064b01bceef8cec45f11a5198918c6c647220b62883606b5e12e3cca3ea369f3a66e69dea6e15f643

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_69670b6c-d49a-42a9-993a-10d18807f7c6
MD5
5e3c7184a75d42dda1a83606a45001d8

SHA1
94ca15637721d88f30eb4b6220b805c5be0360ed

SHA256
8278033a65d1ff48be4d86e11f87930d187692f59f8bf2f0a9d170de285afb59

SHA512
fae99b6e9b106e0f1c30aa4082b25ae1ad643455c1295c2c16ad534e3e611b9b08492353ffe1af1cfdddc9b2b7c330747a64012c45e62b8f4a4982dcc214e05b

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_79712ee8-d332-4c44-9b9e-984573ceba3f
MD5
d89968acfbd0cd60b51df04860d99896

SHA1
b3c29916ccb81ce98f95bbf3aa8a73de16298b29

SHA256
1020cc7c929cd5a4e68ccb40353ca76f427df363f0d95e456eb79db039bdb2b9

SHA512
b0e886cce598371b59131fed1535e220c798691bad93ef9474ba440066f5a6bd77a60966604b7a5ff6298b2e200c9dd0c8f9f04aff208b2af423480ead4e8842

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_7f45a795-9723-4ae3-b7ea-79ea7f92b87a
MD5
a725bb9fafcf91f3c6b7861a2bde6db2

SHA1
8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

SHA256
51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

SHA512
1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_944af35a-9836-4a92-afdf-a2216f0d2b45
MD5
a70ee38af4bb2b5ed3eeb7cbd1a12fa3

SHA1
81dbaeae4b0f9e1adc0a1e3d6d76a12396498ba9

SHA256
dd2f41f92f19c3fe031bdf5da68ab06768e26762d0077b290cd0094df1d5d58d

SHA512
8c69a5300c7545c5c4b25a0594e6813b6b7a85b5f3ae7fc5464b4074fe6f50b2f49d31cacf19bc20a02bb8e237656f1b9b2a3f6a3953e3a8478ca2adc154e0e3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_aacd219d-c7ba-43ff-a67c-9ddc2f632d63
MD5
597009ea0430a463753e0f5b1d1a249e

SHA1
4e38b8bb65ecbd5c9f0d3d8c47f7caba33de6c62

SHA256
3fd2a8217a845c43dbc0dc206c28be81d2687aa9ba62019d905aef10cfaec45d

SHA512
5d722fa908e64575b2497c60d142e182011a10c6ed33813b3b4796b3147ece1bc96938518b4c8911a1bac3b7560528ebe3e8e754c11015516d335df5d7c6871d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_e9f9468a-8cbd-4472-b808-e8b3772f4134
MD5
02ff38ac870de39782aeee04d7b48231

SHA1
0390d39fa216c9b0ecdb38238304e518fb2b5095

SHA256
fbd66a9baf753db31b8de23f2d51b67f8676687503653103080c45b16f1dc876

SHA512
24a1ff76ee42ff7a5ea42843928c4df07b06178f7781cd840e1e086e88735d81506eb67259ff1e6ce5aaa7c5baea03886da265eb7e025ff4dc4c4b5f8cd3e341

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
MD5
b9775c4391601dd6dcc8374a4b9b6420

SHA1
e8280c6492a10396973cba7194482002097b403b

SHA256
67c605ca0da808e626f693c4baa39998de1e1f733c73543dd39e45c2ef832448

SHA512
99b40defed4d631716c7370351a7ac6a97a1bad05006dadb676cd009f95a2aca46b7760de95b9c4c41b063b05739501e66e1775eaae4f064567cda8932a5c703

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
MD5
5b775335691c9afe99404636bf239822

SHA1
62325c7793e9baa905f925d8b6b1648485e67b89

SHA256
4f0295420dd5222256481834f400739b07ee71f7b7b39f6f3d403dff283a6d09

SHA512
12f4c329f27dcbbd7fb04cbfaabd9ef9c64c55a9dbd8f5178b8fd615a86aa09f7b04caec464a4da304e2367f144053c034c503489c8fa882cf796ab60f2b6b67

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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
MD5
03b6ec450f3070bd0bdef183ade08403

SHA1
0cc35d2d2c25e75919bad585e2543d25e3892d58

SHA256
1cf15396dd2b7c119e29cca5c91aacee3455a85dd11c86dca8a76dcb6a4b102c

SHA512
fe5e898dc69bda3312eb95a08027f2b0b2fd5f05ac800d4697747f0391857223ad0b34fea76c1dc1532320b02ed61a29261de43be3a2555a4f7c8d3c8adad6ef

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memory/848-23-0x0000000000000000-mapping.dmp

Download
memory/1292-20-0x00000000049C0000-0x00000000049C1000-memory.dmp

Filesize
4KB

Download
memory/1292-7-0x0000000000000000-mapping.dmp

Download
memory/1292-21-0x00000000049C2000-0x00000000049C3000-memory.dmp

Filesize
4KB

Download
memory/1292-9-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

Filesize
8KB

Download
memory/1292-15-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

Download
memory/1628-22-0x0000000000000000-mapping.dmp

Download
memory/1708-14-0x0000000004860000-0x0000000004861000-memory.dmp

Filesize
4KB

Download
memory/1708-51-0x00000000055D0000-0x00000000055D1000-memory.dmp

Filesize
4KB

Download
memory/1708-44-0x0000000006170000-0x0000000006171000-memory.dmp

Filesize
4KB

Download
memory/1708-36-0x00000000056B0000-0x00000000056B1000-memory.dmp

Filesize
4KB

Download
memory/1708-32-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1708-30-0x0000000005650000-0x0000000005651000-memory.dmp

Filesize
4KB

Download
memory/1708-26-0x0000000005240000-0x0000000005241000-memory.dmp

Filesize
4KB

Download
memory/1708-24-0x0000000002540000-0x0000000002541000-memory.dmp

Filesize
4KB

Download
memory/1708-19-0x0000000004822000-0x0000000004823000-memory.dmp

Filesize
4KB

Download
memory/1708-37-0x00000000061D0000-0x00000000061D1000-memory.dmp

Filesize
4KB

Download
memory/1708-18-0x0000000004820000-0x0000000004821000-memory.dmp

Filesize
4KB

Download
memory/1708-66-0x00000000062C0000-0x00000000062C1000-memory.dmp

Filesize
4KB

Download
memory/1708-67-0x00000000062D0000-0x00000000062D1000-memory.dmp

Filesize
4KB

Download
memory/1708-8-0x0000000000000000-mapping.dmp

Download
memory/1708-13-0x0000000001E30000-0x0000000001E31000-memory.dmp

Filesize
4KB

Download
memory/1708-12-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

Download
memory/1732-2-0x0000000074120000-0x000000007480E000-memory.dmp

Filesize
6.9MB

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memory/1732-6-0x0000000000830000-0x00000000008C1000-memory.dmp

Filesize
580KB

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memory/1732-5-0x0000000004EC0000-0x0000000004EC1000-memory.dmp

Filesize
4KB

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memory/1732-3-0x0000000001180000-0x0000000001181000-memory.dmp

Filesize
4KB

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