remcos | 8b89ce7d6ebc740d866706db34cdf17acbd53745c78244b4ac23179dd1776ba2

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7v20210410
submitted
23-04-2021 09:25

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General

Target

3.exe
Size

546KB
MD5

bdbef8f67b0fb0b9f9d370b69b5d5c03
SHA1

dc4e13a346a2ec29830580ab41f4034bad9dafed
SHA256

8b89ce7d6ebc740d866706db34cdf17acbd53745c78244b4ac23179dd1776ba2
SHA512

60bdb75c159612ac3552f47af5fb6be81a83956213990ce9589c34a5ce05a80862a6fb5772df78f997a7468bef7db6c05227907dd6333ed72dada4f9ee0fb64e

Score

10^/10

remcos rat

Malware Config

Extracted

Family

remcos

zubby2468.hopto.org:8905

Signatures

Remcos
Remcos is a closed-source remote control and surveillance software.
rat remcos
Suspicious use of SetThreadContext 1 IoCs

Processes:

3.exe

description pid process target process

PID 1864 set thread context of 808 1864 3.exe 3.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

288 schtasks.exe
Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

3.exepowershell.exepowershell.exepowershell.exe

pid process

1864 3.exe
1864 3.exe
1548 powershell.exe
1488 powershell.exe
1864 3.exe
1040 powershell.exe
1040 powershell.exe
1488 powershell.exe
1548 powershell.exe

description	pid	process	target process
PID 1864 set thread context of 808	1864	3.exe	3.exe

pid	process
288	schtasks.exe

pid	process
1864	3.exe
1864	3.exe
1548	powershell.exe
1488	powershell.exe
1864	3.exe
1040	powershell.exe
1040	powershell.exe
1488	powershell.exe
1548	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

3.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1864	3.exe
Token: SeDebugPrivilege	1548	powershell.exe
Token: SeDebugPrivilege	1488	powershell.exe
Token: SeDebugPrivilege	1040	powershell.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

3.exe

description	pid	process	target process
PID 1864 wrote to memory of 1488	1864	3.exe	powershell.exe
PID 1864 wrote to memory of 1488	1864	3.exe	powershell.exe
PID 1864 wrote to memory of 1488	1864	3.exe	powershell.exe
PID 1864 wrote to memory of 1488	1864	3.exe	powershell.exe
PID 1864 wrote to memory of 1548	1864	3.exe	powershell.exe
PID 1864 wrote to memory of 1548	1864	3.exe	powershell.exe
PID 1864 wrote to memory of 1548	1864	3.exe	powershell.exe
PID 1864 wrote to memory of 1548	1864	3.exe	powershell.exe
PID 1864 wrote to memory of 288	1864	3.exe	schtasks.exe
PID 1864 wrote to memory of 288	1864	3.exe	schtasks.exe
PID 1864 wrote to memory of 288	1864	3.exe	schtasks.exe
PID 1864 wrote to memory of 288	1864	3.exe	schtasks.exe
PID 1864 wrote to memory of 1040	1864	3.exe	powershell.exe
PID 1864 wrote to memory of 1040	1864	3.exe	powershell.exe
PID 1864 wrote to memory of 1040	1864	3.exe	powershell.exe
PID 1864 wrote to memory of 1040	1864	3.exe	powershell.exe
PID 1864 wrote to memory of 808	1864	3.exe	3.exe
PID 1864 wrote to memory of 808	1864	3.exe	3.exe
PID 1864 wrote to memory of 808	1864	3.exe	3.exe
PID 1864 wrote to memory of 808	1864	3.exe	3.exe
PID 1864 wrote to memory of 808	1864	3.exe	3.exe
PID 1864 wrote to memory of 808	1864	3.exe	3.exe
PID 1864 wrote to memory of 808	1864	3.exe	3.exe
PID 1864 wrote to memory of 808	1864	3.exe	3.exe
PID 1864 wrote to memory of 808	1864	3.exe	3.exe
PID 1864 wrote to memory of 808	1864	3.exe	3.exe
PID 1864 wrote to memory of 808	1864	3.exe	3.exe

C:\Users\Admin\AppData\Local\Temp\3.exe
"C:\Users\Admin\AppData\Local\Temp\3.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1864

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\3.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1488

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\IUjKtcqxqIGX.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1548

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IUjKtcqxqIGX" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD50B.tmp"
2⤵
- Creates scheduled task(s)
PID:288

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\IUjKtcqxqIGX.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1040

C:\Users\Admin\AppData\Local\Temp\3.exe
"C:\Users\Admin\AppData\Local\Temp\3.exe"
2⤵
PID:808

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_1602f747-c1a3-4345-8dec-4dcb8b1f72e5

MD5
02ff38ac870de39782aeee04d7b48231

SHA1
0390d39fa216c9b0ecdb38238304e518fb2b5095

SHA256
fbd66a9baf753db31b8de23f2d51b67f8676687503653103080c45b16f1dc876

SHA512
24a1ff76ee42ff7a5ea42843928c4df07b06178f7781cd840e1e086e88735d81506eb67259ff1e6ce5aaa7c5baea03886da265eb7e025ff4dc4c4b5f8cd3e341

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_160e8ec2-34aa-4e6f-ad9c-28036a923039

MD5
354b8209f647a42e2ce36d8cf326cc92

SHA1
98c3117f797df69935f8b09fc9e95accfe3d8346

SHA256
feae405d288fdd38438f9d9b54f791f3ce3805f1bb88780da5aca402ad372239

SHA512
420be869b58e9a7a2c31f2550ac269df832935692a6431d455a10d9b426781e79d91e30ace2c465633b8a7ff2be1bf49734d8b99a390090dc4b36411d4391ff0

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_2d686436-375c-4ee1-bd4a-9e44ccd248ba

MD5
75a8da7754349b38d64c87c938545b1b

SHA1
5c28c257d51f1c1587e29164cc03ea880c21b417

SHA256
bf08151c174b5d00c9dbc7907b2c6a01b4be76bfa3afce1e8bd98a04ad833c96

SHA512
798797bc74c56c874e9a5fdcb0157c04e37a1b3cce285ef064b01bceef8cec45f11a5198918c6c647220b62883606b5e12e3cca3ea369f3a66e69dea6e15f643

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_4375eeb7-a65d-43f1-a616-02c5ad6c5370

MD5
be4d72095faf84233ac17b94744f7084

SHA1
cc78ce5b9c57573bd214a8f423ee622b00ebb1ec

SHA256
b0d72c5c22e57913476ac8fc686a4593f137c6667d5094522c0a0685dabd7adc

SHA512
43856e9b1032b8690ceea810c931bed3655e9190414bb220fb6afc136f31b8335e07604dffb28405d4006f266a54cff424c527d29924b1b732c9647a3252b097

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6da70655-0b0e-4554-b1b2-bf60a372a018

MD5
d89968acfbd0cd60b51df04860d99896

SHA1
b3c29916ccb81ce98f95bbf3aa8a73de16298b29

SHA256
1020cc7c929cd5a4e68ccb40353ca76f427df363f0d95e456eb79db039bdb2b9

SHA512
b0e886cce598371b59131fed1535e220c798691bad93ef9474ba440066f5a6bd77a60966604b7a5ff6298b2e200c9dd0c8f9f04aff208b2af423480ead4e8842

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_6fe5bd95-2cea-4aea-9c8c-dd67bac4295b

MD5
df44874327d79bd75e4264cb8dc01811

SHA1
1396b06debed65ea93c24998d244edebd3c0209d

SHA256
55de642c5c9e436ec01c57004dae797022442c3245daf7162d19a5585f221181

SHA512
95dc9298b8db059bbe746f67e6a7f8515781c7053cc60c01532e47623a996be7e1bd23d1bd8f5f2045adff27454f44930d503c15b695690088841cedbd2a06c3

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_99506a89-853d-4728-b5ee-9666e0ce9928

MD5
7f79b990cb5ed648f9e583fe35527aa7

SHA1
71b177b48c8bd745ef02c2affad79ca222da7c33

SHA256
080ec69d3f2abac629a0bdc314f150ad42a9a1b0a031b1d5c7b5b80051c48683

SHA512
20926edf7f0b990da4bd8d7ba91bd8bf7b952b75080f687afa7197a91777604688303d38b4a0a7240b558c23f2e0cd927d3590765109f8be0551f5eb050eafda

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_aee1bca5-dba0-4b66-b634-60fe82cfd5e8

MD5
a70ee38af4bb2b5ed3eeb7cbd1a12fa3

SHA1
81dbaeae4b0f9e1adc0a1e3d6d76a12396498ba9

SHA256
dd2f41f92f19c3fe031bdf5da68ab06768e26762d0077b290cd0094df1d5d58d

SHA512
8c69a5300c7545c5c4b25a0594e6813b6b7a85b5f3ae7fc5464b4074fe6f50b2f49d31cacf19bc20a02bb8e237656f1b9b2a3f6a3953e3a8478ca2adc154e0e3

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_bc2fe8ee-69c0-48ce-8821-1fab80ab4eeb

MD5
597009ea0430a463753e0f5b1d1a249e

SHA1
4e38b8bb65ecbd5c9f0d3d8c47f7caba33de6c62

SHA256
3fd2a8217a845c43dbc0dc206c28be81d2687aa9ba62019d905aef10cfaec45d

SHA512
5d722fa908e64575b2497c60d142e182011a10c6ed33813b3b4796b3147ece1bc96938518b4c8911a1bac3b7560528ebe3e8e754c11015516d335df5d7c6871d

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fa12b0a1-3d6a-4bab-a74a-253a75ca0598

MD5
5e3c7184a75d42dda1a83606a45001d8

SHA1
94ca15637721d88f30eb4b6220b805c5be0360ed

SHA256
8278033a65d1ff48be4d86e11f87930d187692f59f8bf2f0a9d170de285afb59

SHA512
fae99b6e9b106e0f1c30aa4082b25ae1ad643455c1295c2c16ad534e3e611b9b08492353ffe1af1cfdddc9b2b7c330747a64012c45e62b8f4a4982dcc214e05b

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fd9bf4da-ec38-4847-85c5-d50f35796d4c

MD5
a725bb9fafcf91f3c6b7861a2bde6db2

SHA1
8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

SHA256
51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

SHA512
1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fd9bf4da-ec38-4847-85c5-d50f35796d4c

MD5
a725bb9fafcf91f3c6b7861a2bde6db2

SHA1
8bb5b83f3cc37ff1e5ea4f02acae38e72364c114

SHA256
51651f27f54c7261887037aa1de4eff0a26c6807906dfc34a15cd5a0b58a8431

SHA512
1c4b21dd5660bfec8347257bb3da64681b0a97c427790d9ab3484f687dac032bcff0e07876635953697b00cf83e7d37f97c44e0219627fd0533f60ed3024b97e

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C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\CommandAnalysis\PowerShell_AnalysisCacheEntry_fe80cd26-0cf7-4e38-9884-6dab53b04ca9

MD5
b6d38f250ccc9003dd70efd3b778117f

SHA1
d5a17c02cac698d4f0a4a9b7d71db2aa19e3f18a

SHA256
4de9d7b5ccab7b67ca8efc83084c7ee6e5e872b7216ed4683bc5da950bf41265

SHA512
67d8195836b7f280d3f9219fd0f58276342e55d5dfdd8a4c54355030d96685d73f1b2b6da0eb39322ec7c3a1d1c5ef06b52d22646cea30a96f822de1800d31e9

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

MD5
1a70682a2d184662ee6d1189f2b65a83

SHA1
fd976cbaf3a6198bc7a8f598053920eca0cc67be

SHA256
d3d7c390f3d6615c9cb3f0bbe62a828acc21c1bc7d1b6e902f98bb58fcc119fd

SHA512
aa3cdaa99f61f3d5354320b6c4d5e1fc2e473be46acdd4c30c44ba491e5fdd5c2efa25b56122bb1b7ff0584936e2e31af2de7636aaf03d118be4ab9e01780a8a

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

MD5
0924397c88f141bcc98fa6c1d4361cf4

SHA1
48404903a228a0fd5aa5588ceb028c92e57b84cc

SHA256
ccffa7e2a2f649cec6cec9ccb613c21ff382323a2a3929a2059a944ea00ccc43

SHA512
1d49d7254559aa32972373303a3933252d5b3ea12bd6d8399888db35716d69ac5406cf333792f493b8565f42ea3379984cf0f39875b7a24464b32e1d4ca928b8

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

MD5
88ccaaf62b307f18683f5222df7740c0

SHA1
8aafaf409d7d0022aa22bd13ee251d041f15ad1f

SHA256
576ec29f0fc72007f89fa6b614c8b4d6d53c272da9b90fe0ab3715872ad142f5

SHA512
f54e2319bcc58a94589115e6d6e9ebdb7fe346a81eac6e799c3da5e38fc229fe0726fc9c05aa0ed210d9231ed3dc12c3f8fc34914c94c17c294f81ca510018a1

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C:\Users\Admin\AppData\Local\Temp\tmpD50B.tmp

MD5
13de9bc9c760e7ea0a78c75cd8f8fa9a

SHA1
c0550270e6776273af79bae044871205aa51bc6b

SHA256
ec115abf56841ee7d69ffd2ee0cc79448580b8e21118e47c9405e4598a82a204

SHA512
c58fe20de1bad1e4ef8873eff526c451dabe8c34d0b09fd1ebff6e70ffc5f72744c6f540411cabeb8b703a75df2d8ed82fa8c4b604885503d4ce3a06cea1b575

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

MD5
fcb1861d87947d5eb2b96c604cc27ad4

SHA1
7c53dc72f1b7e83642858d6860947a1406111c71

SHA256
a1913be05d4611d34047153822fc6c5adcf0848ba1e1dc110672c01345d0014c

SHA512
1591d299ee89ef0b3efe577ba2e796656a2e7b9f42beddab25c149d19c768ef5d2844ab3a7eeb4c767f03289377000f17a48511f2ba36573384b2b5dede34427

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

MD5
fcb1861d87947d5eb2b96c604cc27ad4

SHA1
7c53dc72f1b7e83642858d6860947a1406111c71

SHA256
a1913be05d4611d34047153822fc6c5adcf0848ba1e1dc110672c01345d0014c

SHA512
1591d299ee89ef0b3efe577ba2e796656a2e7b9f42beddab25c149d19c768ef5d2844ab3a7eeb4c767f03289377000f17a48511f2ba36573384b2b5dede34427

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memory/288-69-0x0000000000000000-mapping.dmp

Download
memory/808-82-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/808-83-0x0000000000413FA4-mapping.dmp

Download
memory/808-92-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1040-121-0x0000000006060000-0x0000000006061000-memory.dmp

Filesize
4KB

Download
memory/1040-81-0x0000000000000000-mapping.dmp

Download
memory/1040-100-0x00000000060A0000-0x00000000060A1000-memory.dmp

Filesize
4KB

Download
memory/1040-105-0x0000000006100000-0x0000000006101000-memory.dmp

Filesize
4KB

Download
memory/1040-106-0x00000000061A0000-0x00000000061A1000-memory.dmp

Filesize
4KB

Download
memory/1040-107-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/1040-114-0x0000000006340000-0x0000000006341000-memory.dmp

Filesize
4KB

Download
memory/1040-93-0x0000000001F10000-0x0000000002B5A000-memory.dmp

Filesize
12.3MB

Download
memory/1040-137-0x00000000063D0000-0x00000000063D1000-memory.dmp

Filesize
4KB

Download
memory/1040-136-0x00000000063C0000-0x00000000063C1000-memory.dmp

Filesize
4KB

Download
memory/1040-95-0x0000000002910000-0x0000000002911000-memory.dmp

Filesize
4KB

Download
memory/1488-78-0x0000000001DC0000-0x0000000001DC1000-memory.dmp

Filesize
4KB

Download
memory/1488-67-0x0000000076A81000-0x0000000076A83000-memory.dmp

Filesize
8KB

Download
memory/1488-66-0x0000000000000000-mapping.dmp

Download
memory/1488-80-0x0000000001DC2000-0x0000000001DC3000-memory.dmp

Filesize
4KB

Download
memory/1488-75-0x0000000004750000-0x0000000004751000-memory.dmp

Filesize
4KB

Download
memory/1488-89-0x0000000002580000-0x0000000002581000-memory.dmp

Filesize
4KB

Download
memory/1548-68-0x0000000000000000-mapping.dmp

Download
memory/1548-71-0x0000000001FD0000-0x0000000001FD1000-memory.dmp

Filesize
4KB

Download
memory/1548-79-0x0000000004952000-0x0000000004953000-memory.dmp

Filesize
4KB

Download
memory/1548-77-0x0000000004950000-0x0000000004951000-memory.dmp

Filesize
4KB

Download
memory/1864-60-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1864-65-0x00000000048F0000-0x0000000004926000-memory.dmp

Filesize
216KB

Download
memory/1864-64-0x0000000004F30000-0x0000000004FA4000-memory.dmp

Filesize
464KB

Download
memory/1864-63-0x00000000002E0000-0x00000000002ED000-memory.dmp

Filesize
52KB

Download
memory/1864-62-0x0000000000490000-0x0000000000491000-memory.dmp

Filesize
4KB

Download