remcos | 5454ec6037767c7c675551dafd7c023e8bd974f7fce965aa94505b19151895f2

Analysis

max time kernel
122s
max time network
143s
platform
windows7_x64
resource
win7v20210408
submitted
23-04-2021 15:01

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General

Target

INQUIRY.exe
Size

447KB
MD5

455e8ece9f31a1becb15adcab5be0b37
SHA1

a86310fe3489c342393deef49828d8d633570916
SHA256

5454ec6037767c7c675551dafd7c023e8bd974f7fce965aa94505b19151895f2
SHA512

ca6edf7d575bffb19a78b31d94bdb7e1f30c41c2a77c412495a833be99049f007b7d3c678696f27b77d9b02018e1cb28970d99fdd80c93c2f1e2eb1d459784a6

Score

10^/10

remcos rat

Malware Config

Extracted

Family

remcos

45.144.225.221:5090

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Drops file in System32 directory 1 IoCs

Processes:

INQUIRY.exe

description ioc process

File opened for modification C:\Windows\SysWOW64\windows\logs.dat INQUIRY.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

INQUIRY.exe

description pid process target process

PID 1992 set thread context of 1336 1992 INQUIRY.exe INQUIRY.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1044 schtasks.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

INQUIRY.exepowershell.exepowershell.exepowershell.exe

pid process

1992 INQUIRY.exe
1992 INQUIRY.exe
1832 powershell.exe
892 powershell.exe
1720 powershell.exe
892 powershell.exe
1832 powershell.exe
1720 powershell.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\windows\logs.dat	INQUIRY.exe

description	pid	process	target process
PID 1992 set thread context of 1336	1992	INQUIRY.exe	INQUIRY.exe

pid	process
1044	schtasks.exe

pid	process
1992	INQUIRY.exe
1992	INQUIRY.exe
1832	powershell.exe
892	powershell.exe
1720	powershell.exe
892	powershell.exe
1832	powershell.exe
1720	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

INQUIRY.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1992	INQUIRY.exe
Token: SeDebugPrivilege	1720	powershell.exe
Token: SeDebugPrivilege	1832	powershell.exe
Token: SeDebugPrivilege	892	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

INQUIRY.exe

pid process

1336 INQUIRY.exe

pid	process
1336	INQUIRY.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

INQUIRY.exe

description	pid	process	target process
PID 1992 wrote to memory of 892	1992	INQUIRY.exe	powershell.exe
PID 1992 wrote to memory of 892	1992	INQUIRY.exe	powershell.exe
PID 1992 wrote to memory of 892	1992	INQUIRY.exe	powershell.exe
PID 1992 wrote to memory of 892	1992	INQUIRY.exe	powershell.exe
PID 1992 wrote to memory of 1832	1992	INQUIRY.exe	powershell.exe
PID 1992 wrote to memory of 1832	1992	INQUIRY.exe	powershell.exe
PID 1992 wrote to memory of 1832	1992	INQUIRY.exe	powershell.exe
PID 1992 wrote to memory of 1832	1992	INQUIRY.exe	powershell.exe
PID 1992 wrote to memory of 1044	1992	INQUIRY.exe	schtasks.exe
PID 1992 wrote to memory of 1044	1992	INQUIRY.exe	schtasks.exe
PID 1992 wrote to memory of 1044	1992	INQUIRY.exe	schtasks.exe
PID 1992 wrote to memory of 1044	1992	INQUIRY.exe	schtasks.exe
PID 1992 wrote to memory of 1720	1992	INQUIRY.exe	powershell.exe
PID 1992 wrote to memory of 1720	1992	INQUIRY.exe	powershell.exe
PID 1992 wrote to memory of 1720	1992	INQUIRY.exe	powershell.exe
PID 1992 wrote to memory of 1720	1992	INQUIRY.exe	powershell.exe
PID 1992 wrote to memory of 1336	1992	INQUIRY.exe	INQUIRY.exe
PID 1992 wrote to memory of 1336	1992	INQUIRY.exe	INQUIRY.exe
PID 1992 wrote to memory of 1336	1992	INQUIRY.exe	INQUIRY.exe
PID 1992 wrote to memory of 1336	1992	INQUIRY.exe	INQUIRY.exe
PID 1992 wrote to memory of 1336	1992	INQUIRY.exe	INQUIRY.exe
PID 1992 wrote to memory of 1336	1992	INQUIRY.exe	INQUIRY.exe
PID 1992 wrote to memory of 1336	1992	INQUIRY.exe	INQUIRY.exe
PID 1992 wrote to memory of 1336	1992	INQUIRY.exe	INQUIRY.exe
PID 1992 wrote to memory of 1336	1992	INQUIRY.exe	INQUIRY.exe
PID 1992 wrote to memory of 1336	1992	INQUIRY.exe	INQUIRY.exe

C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe
"C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1992

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\INQUIRY.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:892

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\brrAhy.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1832

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\brrAhy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFEB9.tmp"
2⤵
- Creates scheduled task(s)
PID:1044

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\brrAhy.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1720

C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe
"C:\Users\Admin\AppData\Local\Temp\INQUIRY.exe"
2⤵
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
PID:1336

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_10a2719f-ab19-452c-9537-375fecbe5f96

MD5
df44874327d79bd75e4264cb8dc01811

SHA1
1396b06debed65ea93c24998d244edebd3c0209d

SHA256
55de642c5c9e436ec01c57004dae797022442c3245daf7162d19a5585f221181

SHA512
95dc9298b8db059bbe746f67e6a7f8515781c7053cc60c01532e47623a996be7e1bd23d1bd8f5f2045adff27454f44930d503c15b695690088841cedbd2a06c3

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_1abda922-9e0e-4200-89d0-60796083afcc

MD5
be4d72095faf84233ac17b94744f7084

SHA1
cc78ce5b9c57573bd214a8f423ee622b00ebb1ec

SHA256
b0d72c5c22e57913476ac8fc686a4593f137c6667d5094522c0a0685dabd7adc

SHA512
43856e9b1032b8690ceea810c931bed3655e9190414bb220fb6afc136f31b8335e07604dffb28405d4006f266a54cff424c527d29924b1b732c9647a3252b097

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_32b21970-4839-4ac5-a2ad-cc925aecc47c

MD5
a725bb9fafcf91f3c6b7861a2bde6db2

SHA1
8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

SHA256
51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

SHA512
1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_32b21970-4839-4ac5-a2ad-cc925aecc47c

MD5
a725bb9fafcf91f3c6b7861a2bde6db2

SHA1
8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

SHA256
51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

SHA512
1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_60554f64-a36e-4439-8748-76f202d7cb75

MD5
02ff38ac870de39782aeee04d7b48231

SHA1
0390d39fa216c9b0ecdb38238304e518fb2b5095

SHA256
fbd66a9baf753db31b8de23f2d51b67f8676687503653103080c45b16f1dc876

SHA512
24a1ff76ee42ff7a5ea42843928c4df07b06178f7781cd840e1e086e88735d81506eb67259ff1e6ce5aaa7c5baea03886da265eb7e025ff4dc4c4b5f8cd3e341

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6ccb18ff-7a22-469e-90e7-ccc861e1432b

MD5
b6d38f250ccc9003dd70efd3b778117f

SHA1
d5a17c02cac698d4f0a4a9b7d71db2aa19e3f18a

SHA256
4de9d7b5ccab7b67ca8efc83084c7ee6e5e872b7216ed4683bc5da950bf41265

SHA512
67d8195836b7f280d3f9219fd0f58276342e55d5dfdd8a4c54355030d96685d73f1b2b6da0eb39322ec7c3a1d1c5ef06b52d22646cea30a96f822de1800d31e9

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_7bc5ca8a-50eb-4a28-856a-31595e01418a

MD5
597009ea0430a463753e0f5b1d1a249e

SHA1
4e38b8bb65ecbd5c9f0d3d8c47f7caba33de6c62

SHA256
3fd2a8217a845c43dbc0dc206c28be81d2687aa9ba62019d905aef10cfaec45d

SHA512
5d722fa908e64575b2497c60d142e182011a10c6ed33813b3b4796b3147ece1bc96938518b4c8911a1bac3b7560528ebe3e8e754c11015516d335df5d7c6871d

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_7ee192c7-a93a-456a-9796-96cb3bc46f7d

MD5
d89968acfbd0cd60b51df04860d99896

SHA1
b3c29916ccb81ce98f95bbf3aa8a73de16298b29

SHA256
1020cc7c929cd5a4e68ccb40353ca76f427df363f0d95e456eb79db039bdb2b9

SHA512
b0e886cce598371b59131fed1535e220c798691bad93ef9474ba440066f5a6bd77a60966604b7a5ff6298b2e200c9dd0c8f9f04aff208b2af423480ead4e8842

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_a6e64c3f-24ad-4aaf-88d8-72148165f127

MD5
354b8209f647a42e2ce36d8cf326cc92

SHA1
98c3117f797df69935f8b09fc9e95accfe3d8346

SHA256
feae405d288fdd38438f9d9b54f791f3ce3805f1bb88780da5aca402ad372239

SHA512
420be869b58e9a7a2c31f2550ac269df832935692a6431d455a10d9b426781e79d91e30ace2c465633b8a7ff2be1bf49734d8b99a390090dc4b36411d4391ff0

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_bd47eb21-a96b-4ccd-99d7-0d9f3f6c10b6

MD5
75a8da7754349b38d64c87c938545b1b

SHA1
5c28c257d51f1c1587e29164cc03ea880c21b417

SHA256
bf08151c174b5d00c9dbc7907b2c6a01b4be76bfa3afce1e8bd98a04ad833c96

SHA512
798797bc74c56c874e9a5fdcb0157c04e37a1b3cce285ef064b01bceef8cec45f11a5198918c6c647220b62883606b5e12e3cca3ea369f3a66e69dea6e15f643

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_c9b427a0-6073-4eb8-9b09-f8e4712d7ab5

MD5
5e3c7184a75d42dda1a83606a45001d8

SHA1
94ca15637721d88f30eb4b6220b805c5be0360ed

SHA256
8278033a65d1ff48be4d86e11f87930d187692f59f8bf2f0a9d170de285afb59

SHA512
fae99b6e9b106e0f1c30aa4082b25ae1ad643455c1295c2c16ad534e3e611b9b08492353ffe1af1cfdddc9b2b7c330747a64012c45e62b8f4a4982dcc214e05b

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_d769b1fe-9aca-4453-ac33-0c4a85d2cf4e

MD5
7f79b990cb5ed648f9e583fe35527aa7

SHA1
71b177b48c8bd745ef02c2affad79ca222da7c33

SHA256
080ec69d3f2abac629a0bdc314f150ad42a9a1b0a031b1d5c7b5b80051c48683

SHA512
20926edf7f0b990da4bd8d7ba91bd8bf7b952b75080f687afa7197a91777604688303d38b4a0a7240b558c23f2e0cd927d3590765109f8be0551f5eb050eafda

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_d8f91f03-fade-4477-bb01-cc5dd7a576dc

MD5
a70ee38af4bb2b5ed3eeb7cbd1a12fa3

SHA1
81dbaeae4b0f9e1adc0a1e3d6d76a12396498ba9

SHA256
dd2f41f92f19c3fe031bdf5da68ab06768e26762d0077b290cd0094df1d5d58d

SHA512
8c69a5300c7545c5c4b25a0594e6813b6b7a85b5f3ae7fc5464b4074fe6f50b2f49d31cacf19bc20a02bb8e237656f1b9b2a3f6a3953e3a8478ca2adc154e0e3

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

MD5
c78c23e028ba17f88d31ae7ca50a9ea3

SHA1
4c23eca2fb08cc57f80cd05f1271588bf71abbac

SHA256
4932063091012692a144ebf464a2c5a53d7889845364cb4ebf48c32d375cb016

SHA512
acf75cc36e408a01c6fc0e0cecbcbefabca007eb6cd4bd1375362313974a4b870f32186dabf9cc2854fd0593814645f41d1088bcbbef86c8cc59addce5700dec

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

MD5
8b25844d81df61b4e74a4282912a7f4e

SHA1
fc28a0951709d03bae613624836f981a0b3ccd1c

SHA256
c0fbff32ac7a396896379b10dfc27caf2f20bc8d07436fc61cc4c319bcb1ebb7

SHA512
ee43d1e9fa22dae9474886879ec6913137a8d95f6472b663f7c093f0838d06a9f111c3aa4614c2907fa18f99163996ad53bcd35c596188fc3570923d67c5da6e

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

MD5
8b25844d81df61b4e74a4282912a7f4e

SHA1
fc28a0951709d03bae613624836f981a0b3ccd1c

SHA256
c0fbff32ac7a396896379b10dfc27caf2f20bc8d07436fc61cc4c319bcb1ebb7

SHA512
ee43d1e9fa22dae9474886879ec6913137a8d95f6472b663f7c093f0838d06a9f111c3aa4614c2907fa18f99163996ad53bcd35c596188fc3570923d67c5da6e

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C:\Users\Admin\AppData\Local\Temp\tmpFEB9.tmp

MD5
1c2cbfb00eaf10f96e7817259aa0d2a3

SHA1
165c86d3a8074e6c670ca7aee065775f9ec1a9aa

SHA256
120d198faaee4f277b95e480aa0499d27227eea423b014fb3dcd4fdf30315540

SHA512
2c32213e35c1e3f00ba3b80295a48e2bc02b2046dce61782575957259e4bce91e5e222a3af14cb35588187583de275269517c4e66899ce3921518a8e4ffa7385

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

MD5
f63ea6d028f22d38d6e8c9130a2aa7cd

SHA1
72c9948fd1044eec231d5ac29f327e86f5ec169f

SHA256
5240324044070729ee7f0ca5fa8b1f51dea0e5eca6274f7b22d779103f46624f

SHA512
ae49be575cb76258f2783648aa5f88efe54711580e870489e7bcdca42978e417299f830ee72c92c00e59e6f45594b5b4f2a3f50c989ac4a3a48229d6874297ae

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

MD5
f63ea6d028f22d38d6e8c9130a2aa7cd

SHA1
72c9948fd1044eec231d5ac29f327e86f5ec169f

SHA256
5240324044070729ee7f0ca5fa8b1f51dea0e5eca6274f7b22d779103f46624f

SHA512
ae49be575cb76258f2783648aa5f88efe54711580e870489e7bcdca42978e417299f830ee72c92c00e59e6f45594b5b4f2a3f50c989ac4a3a48229d6874297ae

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memory/892-77-0x00000000048F0000-0x00000000048F1000-memory.dmp

Filesize
4KB

Download
memory/892-92-0x0000000004610000-0x0000000004611000-memory.dmp

Filesize
4KB

Download
memory/892-66-0x0000000000000000-mapping.dmp

Download
memory/892-67-0x0000000075B31000-0x0000000075B33000-memory.dmp

Filesize
8KB

Download
memory/892-80-0x00000000048F2000-0x00000000048F3000-memory.dmp

Filesize
4KB

Download
memory/1044-70-0x0000000000000000-mapping.dmp

Download
memory/1336-89-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1336-83-0x000000000040FD88-mapping.dmp

Download
memory/1336-82-0x0000000000400000-0x0000000000417000-memory.dmp

Filesize
92KB

Download
memory/1720-81-0x0000000000000000-mapping.dmp

Download
memory/1720-90-0x00000000048A0000-0x00000000048A1000-memory.dmp

Filesize
4KB

Download
memory/1720-91-0x00000000048A2000-0x00000000048A3000-memory.dmp

Filesize
4KB

Download
memory/1720-95-0x0000000005300000-0x0000000005301000-memory.dmp

Filesize
4KB

Download
memory/1832-79-0x0000000004872000-0x0000000004873000-memory.dmp

Filesize
4KB

Download
memory/1832-72-0x0000000002390000-0x0000000002391000-memory.dmp

Filesize
4KB

Download
memory/1832-107-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1832-78-0x0000000004870000-0x0000000004871000-memory.dmp

Filesize
4KB

Download
memory/1832-100-0x0000000006080000-0x0000000006081000-memory.dmp

Filesize
4KB

Download
memory/1832-121-0x0000000005650000-0x0000000005651000-memory.dmp

Filesize
4KB

Download
memory/1832-74-0x00000000048B0000-0x00000000048B1000-memory.dmp

Filesize
4KB

Download
memory/1832-136-0x0000000006300000-0x0000000006301000-memory.dmp

Filesize
4KB

Download
memory/1832-137-0x0000000006310000-0x0000000006311000-memory.dmp

Filesize
4KB

Download
memory/1832-114-0x0000000006280000-0x0000000006281000-memory.dmp

Filesize
4KB

Download
memory/1832-106-0x0000000006170000-0x0000000006171000-memory.dmp

Filesize
4KB

Download
memory/1832-68-0x0000000000000000-mapping.dmp

Download
memory/1832-105-0x00000000060C0000-0x00000000060C1000-memory.dmp

Filesize
4KB

Download
memory/1992-60-0x0000000000900000-0x0000000000901000-memory.dmp

Filesize
4KB

Download
memory/1992-65-0x0000000000670000-0x000000000069B000-memory.dmp

Filesize
172KB

Download
memory/1992-64-0x00000000048C0000-0x000000000492F000-memory.dmp

Filesize
444KB

Download
memory/1992-63-0x0000000000540000-0x000000000054D000-memory.dmp

Filesize
52KB

Download
memory/1992-62-0x0000000004EE0000-0x0000000004EE1000-memory.dmp

Filesize
4KB

Download