14c7bec7369d4175c6d92554b033862b3847ff98a04dfebdf9f5bb30180ed13e

Analysis

max time kernel
12s
max time network
15s
platform
windows7_x64
resource
win7v20201028
submitted
15-02-2021 10:18

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General

Target

updatewin1.exe
Size

272KB
MD5

5b4bd24d6240f467bfbc74803c9f15b0
SHA1

c17f98c182d299845c54069872e8137645768a1a
SHA256

14c7bec7369d4175c6d92554b033862b3847ff98a04dfebdf9f5bb30180ed13e
SHA512

a896acc38a6ff9641b0803f0598369c0d4fa8e38da28c1653c57948fe5e3274880d1b2e7959cd1b1da43375a1318b3ba72e13240bf40b27c852ee72bbb16cadc

Score

10^/10

evasion

Malware Config

Signatures

Deletes Windows Defender Definitions 2 TTPs 1 IoCs
Uses mpcmdrun utility to delete all AV definitions.
evasion

Impair Defenses
T1562

Command-Line Interface
T1059

Processes:

mpcmdrun.exe

pid process

1112 mpcmdrun.exe
Disables Task Manager via registry modification
evasion
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1192 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

powershell.exepowershell.exepowershell.exe

pid process

1232 powershell.exe
1232 powershell.exe
1232 powershell.exe
880 powershell.exe
880 powershell.exe
1304 powershell.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exepowershell.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1232 powershell.exe
Token: SeDebugPrivilege 880 powershell.exe
Token: SeDebugPrivilege 1304 powershell.exe

pid	process
1112	mpcmdrun.exe

pid	process
1192	cmd.exe

pid	process
1232	powershell.exe
1232	powershell.exe
1232	powershell.exe
880	powershell.exe
880	powershell.exe
1304	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1232	powershell.exe
Token: SeDebugPrivilege	880	powershell.exe
Token: SeDebugPrivilege	1304	powershell.exe

Suspicious use of WriteProcessMemory 39 IoCs

Processes:

updatewin1.exeupdatewin1.exepowershell.exe

description	pid	process	target process
PID 1784 wrote to memory of 1032	1784	updatewin1.exe	updatewin1.exe
PID 1784 wrote to memory of 1032	1784	updatewin1.exe	updatewin1.exe
PID 1784 wrote to memory of 1032	1784	updatewin1.exe	updatewin1.exe
PID 1784 wrote to memory of 1032	1784	updatewin1.exe	updatewin1.exe
PID 1784 wrote to memory of 1032	1784	updatewin1.exe	updatewin1.exe
PID 1784 wrote to memory of 1032	1784	updatewin1.exe	updatewin1.exe
PID 1784 wrote to memory of 1032	1784	updatewin1.exe	updatewin1.exe
PID 1032 wrote to memory of 1232	1032	updatewin1.exe	powershell.exe
PID 1032 wrote to memory of 1232	1032	updatewin1.exe	powershell.exe
PID 1032 wrote to memory of 1232	1032	updatewin1.exe	powershell.exe
PID 1032 wrote to memory of 1232	1032	updatewin1.exe	powershell.exe
PID 1032 wrote to memory of 1232	1032	updatewin1.exe	powershell.exe
PID 1032 wrote to memory of 1232	1032	updatewin1.exe	powershell.exe
PID 1032 wrote to memory of 1232	1032	updatewin1.exe	powershell.exe
PID 1032 wrote to memory of 880	1032	updatewin1.exe	powershell.exe
PID 1032 wrote to memory of 880	1032	updatewin1.exe	powershell.exe
PID 1032 wrote to memory of 880	1032	updatewin1.exe	powershell.exe
PID 1032 wrote to memory of 880	1032	updatewin1.exe	powershell.exe
PID 1032 wrote to memory of 880	1032	updatewin1.exe	powershell.exe
PID 1032 wrote to memory of 880	1032	updatewin1.exe	powershell.exe
PID 1032 wrote to memory of 880	1032	updatewin1.exe	powershell.exe
PID 880 wrote to memory of 1304	880	powershell.exe	powershell.exe
PID 880 wrote to memory of 1304	880	powershell.exe	powershell.exe
PID 880 wrote to memory of 1304	880	powershell.exe	powershell.exe
PID 880 wrote to memory of 1304	880	powershell.exe	powershell.exe
PID 880 wrote to memory of 1304	880	powershell.exe	powershell.exe
PID 880 wrote to memory of 1304	880	powershell.exe	powershell.exe
PID 880 wrote to memory of 1304	880	powershell.exe	powershell.exe
PID 1032 wrote to memory of 1112	1032	updatewin1.exe	mpcmdrun.exe
PID 1032 wrote to memory of 1112	1032	updatewin1.exe	mpcmdrun.exe
PID 1032 wrote to memory of 1112	1032	updatewin1.exe	mpcmdrun.exe
PID 1032 wrote to memory of 1112	1032	updatewin1.exe	mpcmdrun.exe
PID 1032 wrote to memory of 1192	1032	updatewin1.exe	cmd.exe
PID 1032 wrote to memory of 1192	1032	updatewin1.exe	cmd.exe
PID 1032 wrote to memory of 1192	1032	updatewin1.exe	cmd.exe
PID 1032 wrote to memory of 1192	1032	updatewin1.exe	cmd.exe
PID 1032 wrote to memory of 1192	1032	updatewin1.exe	cmd.exe
PID 1032 wrote to memory of 1192	1032	updatewin1.exe	cmd.exe
PID 1032 wrote to memory of 1192	1032	updatewin1.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\updatewin1.exe
"C:\Users\Admin\AppData\Local\Temp\updatewin1.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1784

C:\Users\Admin\AppData\Local\Temp\updatewin1.exe
"C:\Users\Admin\AppData\Local\Temp\updatewin1.exe" --Admin
2⤵
- Suspicious use of WriteProcessMemory
PID:1032

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -Command Set-ExecutionPolicy -Scope CurrentUser RemoteSigned
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1232

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -NoProfile -ExecutionPolicy Bypass -Command "& {Start-Process PowerShell -ArgumentList '-NoProfile -ExecutionPolicy Bypass -File ""C:\Users\Admin\AppData\Local\script.ps1""' -Verb RunAs}"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:880

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\script.ps1
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1304

C:\Program Files\Windows Defender\mpcmdrun.exe
"C:\Program Files\Windows Defender\mpcmdrun.exe" -removedefinitions -all
3⤵
- Deletes Windows Defender Definitions
PID:1112

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\delself.bat""
3⤵
- Deletes itself
PID:1192

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Command-Line Interface

T1059

Persistence

Privilege Escalation

Defense Evasion

Impair Defenses

T1562

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_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

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
7a8545b5147bf598d6f260b3bd03fcc8

SHA1
7aec98b9d1e0a0337f221aecb297a8c4baa1066c

SHA256
952cfd1cff898fd8c866524434d2c56c308f84465b74fb749399ea5fe1a9c05c

SHA512
72ede12c3c3591ed325680176449e17965461a46cde70ff3f59a55af220a869a5db3ed7e005b55a8f5e00fda7f101d508aadf3fa2198d38832a03d547919e3d9

Download Submit
C:\Users\Admin\AppData\Local\Temp\delself.bat
MD5
9e5ded39abd73456458318c691bbd679

SHA1
0b111626c3687fbd3f647b01fa27d26c88c4583d

SHA256
2c4cad4d2fa2df8c8a61085b6ecc91215486fbb5d8e643eec889fc5709a5813f

SHA512
564c2319b34847b605c1a73db2427ad29d52579cc22cece04c327040b7a9a77591cc6e2dfffa825e70a4534451e70b80e04c01a0b9a3b12c0b96c594bb9c07e4

Download Submit
C:\Users\Admin\AppData\Local\script.ps1
MD5
f972c62f986b5ed49ad7713d93bf6c9f

SHA1
4e157002bdb97e9526ab97bfafbf7c67e1d1efbf

SHA256
b47f85974a7ec2fd5aa82d52f08eb0f6cea7e596a98dd29e8b85b5c37beca0a8

SHA512
2c9e2e1b8b6cb5ffe3edf5dfbc2c3b917cd15ba6a5e5264207a43b02ce7020f44f5088aca195f7b428699f0d6bd693ce557a0227d67bbb4795e350a97314e9c4

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
MD5
93737564408e6f9639f639f154ff88be

SHA1
80ac4e30c5f753848136742a845d4c2ff6db32af

SHA256
7d52dd90a8980392a46fa2688b18150ae04f294b3149c34b17e0fb5a4540acbd

SHA512
700023a136f5718923a13b43631543cdc3a57f8ee5bbf38d4cd0a83d90e8e607307c8d8134327956d026fad58679362173327f3aa2a7e87fb019e8c516ec88dc

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
MD5
93737564408e6f9639f639f154ff88be

SHA1
80ac4e30c5f753848136742a845d4c2ff6db32af

SHA256
7d52dd90a8980392a46fa2688b18150ae04f294b3149c34b17e0fb5a4540acbd

SHA512
700023a136f5718923a13b43631543cdc3a57f8ee5bbf38d4cd0a83d90e8e607307c8d8134327956d026fad58679362173327f3aa2a7e87fb019e8c516ec88dc

Download Submit
memory/880-35-0x0000000000000000-mapping.dmp

Download
memory/880-52-0x00000000061E0000-0x00000000061E1000-memory.dmp

Filesize
4KB

Download
memory/880-44-0x0000000004A70000-0x0000000004A71000-memory.dmp

Filesize
4KB

Download
memory/880-43-0x0000000004AC2000-0x0000000004AC3000-memory.dmp

Filesize
4KB

Download
memory/880-38-0x0000000073B80000-0x000000007426E000-memory.dmp

Filesize
6.9MB

Download
memory/880-39-0x0000000000C00000-0x0000000000C01000-memory.dmp

Filesize
4KB

Download
memory/880-40-0x0000000004B00000-0x0000000004B01000-memory.dmp

Filesize
4KB

Download
memory/880-41-0x0000000004850000-0x0000000004851000-memory.dmp

Filesize
4KB

Download
memory/880-42-0x0000000004AC0000-0x0000000004AC1000-memory.dmp

Filesize
4KB

Download
memory/1032-6-0x0000000001F10000-0x0000000001F21000-memory.dmp

Filesize
68KB

Download
memory/1032-4-0x0000000000000000-mapping.dmp

Download
memory/1112-54-0x0000000000000000-mapping.dmp

Download
memory/1192-57-0x0000000000000000-mapping.dmp

Download
memory/1232-20-0x00000000061E0000-0x00000000061E1000-memory.dmp

Filesize
4KB

Download
memory/1232-7-0x0000000000000000-mapping.dmp

Download
memory/1232-33-0x0000000006420000-0x0000000006421000-memory.dmp

Filesize
4KB

Download
memory/1232-26-0x0000000006370000-0x0000000006371000-memory.dmp

Filesize
4KB

Download
memory/1232-25-0x0000000006280000-0x0000000006281000-memory.dmp

Filesize
4KB

Download
memory/1232-34-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1232-17-0x0000000004900000-0x0000000004901000-memory.dmp

Filesize
4KB

Download
memory/1232-16-0x0000000002580000-0x0000000002581000-memory.dmp

Filesize
4KB

Download
memory/1232-14-0x0000000002850000-0x0000000002851000-memory.dmp

Filesize
4KB

Download
memory/1232-15-0x0000000002852000-0x0000000002853000-memory.dmp

Filesize
4KB

Download
memory/1232-11-0x0000000073C20000-0x000000007430E000-memory.dmp

Filesize
6.9MB

Download
memory/1232-13-0x0000000004A00000-0x0000000004A01000-memory.dmp

Filesize
4KB

Download
memory/1232-12-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/1304-72-0x0000000005AC0000-0x0000000005AC1000-memory.dmp

Filesize
4KB

Download
memory/1304-63-0x0000000002930000-0x0000000002931000-memory.dmp

Filesize
4KB

Download
memory/1304-59-0x00000000021C0000-0x00000000021C1000-memory.dmp

Filesize
4KB

Download
memory/1304-60-0x0000000004A00000-0x0000000004A01000-memory.dmp

Filesize
4KB

Download
memory/1304-66-0x0000000005420000-0x0000000005421000-memory.dmp

Filesize
4KB

Download
memory/1304-64-0x00000000028C0000-0x00000000028C1000-memory.dmp

Filesize
4KB

Download
memory/1304-58-0x0000000073BF0000-0x00000000742DE000-memory.dmp

Filesize
6.9MB

Download
memory/1304-65-0x00000000028C2000-0x00000000028C3000-memory.dmp

Filesize
4KB

Download
memory/1304-86-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1304-85-0x0000000005BA0000-0x0000000005BA1000-memory.dmp

Filesize
4KB

Download
memory/1304-84-0x0000000005B90000-0x0000000005B91000-memory.dmp

Filesize
4KB

Download
memory/1304-69-0x0000000005940000-0x0000000005941000-memory.dmp

Filesize
4KB

Download
memory/1304-53-0x0000000000000000-mapping.dmp

Download
memory/1784-3-0x00000000020A0000-0x00000000020B1000-memory.dmp

Filesize
68KB

Download
memory/1784-2-0x00000000760D1000-0x00000000760D3000-memory.dmp

Filesize
8KB

Download
memory/1784-9-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download