colibri | 908afda25d78205d477533a6be2bb78854952023c5469167ea5f78011f6e99e6

Analysis

max time kernel
142s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20220722-en
resource tags

arch:x64arch:x86image:win10v2004-20220722-enlocale:en-usos:windows10-2004-x64system
submitted
03/08/2022, 13:18

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General

Target
908afda25d78205d477533a6be2bb78854952023c5469167ea5f78011f6e99e6.exe
Size 555KB
Sample220803-qke7aabea4
SHA256 908afda25d78205d477533a6be2bb78854952023c5469167ea5f78011f6e99e6
MD5 ebb6ff0c166615b324376fcfac222a1e
SHA1 40469e99ca8181cf17547a6c1b7939086c8653a1
SHA512 8f8cb77813a2af2b9d51abed94c07cee8c775b30982342e1bdde55eaf1df45aa606070a53e149c645d0b05fd23c150874ff0cb5bcac2aa61d099b75581ce852f
MD5 SHA1 SHA512

Score

10^/10

colibri build1 loader persistence

Malware Config

Extracted

Family

colibri

Version

1.2.0

Botnet

Build1

http://zpltcmgodhvvedxtfcygvbgjkvgvcguygytfigj.cc/gate.php
http://yugyuvyugguitgyuigtfyutdtoghghbbgyv.cx/gate.php

Signatures

Colibri Loader
A loader sold as MaaS first seen in August 2021.
loader colibri

Executes dropped EXE 7 IoCs

pid	Process
4940	tmp4083.tmp.exe
4904	tmp4083.tmp.exe
2196	Get-Variable.exe
376	Get-Variable.exe
3196	Get-Variable.exe
3140	Get-Variable.exe
3200	Get-Variable.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\Control Panel\International\Geo\Nation	908afda25d78205d477533a6be2bb78854952023c5469167ea5f78011f6e99e6.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3463845317-933582289-45817732-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RegSvc = "C:\\Users\\Admin\\AppData\\Local\\Temp\\908afda25d78205d477533a6be2bb78854952023c5469167ea5f78011f6e99e6.exe"	908afda25d78205d477533a6be2bb78854952023c5469167ea5f78011f6e99e6.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4940 set thread context of 4904	4940	tmp4083.tmp.exe	82
PID 2196 set thread context of 376	2196	Get-Variable.exe	94
PID 3140 set thread context of 3200	3140	Get-Variable.exe	97

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

pid	Process
4864	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4788	powershell.exe
4788	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4788	powershell.exe

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 3432 wrote to memory of 4940	3432	908afda25d78205d477533a6be2bb78854952023c5469167ea5f78011f6e99e6.exe	81
PID 3432 wrote to memory of 4940	3432	908afda25d78205d477533a6be2bb78854952023c5469167ea5f78011f6e99e6.exe	81
PID 3432 wrote to memory of 4940	3432	908afda25d78205d477533a6be2bb78854952023c5469167ea5f78011f6e99e6.exe	81
PID 4940 wrote to memory of 4904	4940	tmp4083.tmp.exe	82
PID 4940 wrote to memory of 4904	4940	tmp4083.tmp.exe	82
PID 4940 wrote to memory of 4904	4940	tmp4083.tmp.exe	82
PID 4940 wrote to memory of 4904	4940	tmp4083.tmp.exe	82
PID 4940 wrote to memory of 4904	4940	tmp4083.tmp.exe	82
PID 4940 wrote to memory of 4904	4940	tmp4083.tmp.exe	82
PID 4940 wrote to memory of 4904	4940	tmp4083.tmp.exe	82
PID 4904 wrote to memory of 4864	4904	tmp4083.tmp.exe	92
PID 4904 wrote to memory of 4864	4904	tmp4083.tmp.exe	92
PID 4904 wrote to memory of 4864	4904	tmp4083.tmp.exe	92
PID 4904 wrote to memory of 2196	4904	tmp4083.tmp.exe	93
PID 4904 wrote to memory of 2196	4904	tmp4083.tmp.exe	93
PID 4904 wrote to memory of 2196	4904	tmp4083.tmp.exe	93
PID 2196 wrote to memory of 376	2196	Get-Variable.exe	94
PID 2196 wrote to memory of 376	2196	Get-Variable.exe	94
PID 2196 wrote to memory of 376	2196	Get-Variable.exe	94
PID 2196 wrote to memory of 376	2196	Get-Variable.exe	94
PID 2196 wrote to memory of 376	2196	Get-Variable.exe	94
PID 2196 wrote to memory of 376	2196	Get-Variable.exe	94
PID 2196 wrote to memory of 376	2196	Get-Variable.exe	94
PID 4788 wrote to memory of 3196	4788	powershell.exe	99
PID 4788 wrote to memory of 3196	4788	powershell.exe	99
PID 4788 wrote to memory of 3196	4788	powershell.exe	99
PID 3196 wrote to memory of 3140	3196	Get-Variable.exe	98
PID 3196 wrote to memory of 3140	3196	Get-Variable.exe	98
PID 3196 wrote to memory of 3140	3196	Get-Variable.exe	98
PID 3140 wrote to memory of 3200	3140	Get-Variable.exe	97
PID 3140 wrote to memory of 3200	3140	Get-Variable.exe	97
PID 3140 wrote to memory of 3200	3140	Get-Variable.exe	97
PID 3140 wrote to memory of 3200	3140	Get-Variable.exe	97
PID 3140 wrote to memory of 3200	3140	Get-Variable.exe	97
PID 3140 wrote to memory of 3200	3140	Get-Variable.exe	97
PID 3140 wrote to memory of 3200	3140	Get-Variable.exe	97

C:\Users\Admin\AppData\Local\Temp\908afda25d78205d477533a6be2bb78854952023c5469167ea5f78011f6e99e6.exe
"C:\Users\Admin\AppData\Local\Temp\908afda25d78205d477533a6be2bb78854952023c5469167ea5f78011f6e99e6.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3432
- C:\Users\Admin\AppData\Local\Temp\tmp4083.tmp.exe
  "C:\Users\Admin\AppData\Local\Temp\tmp4083.tmp.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4940
- - C:\Users\Admin\AppData\Local\Temp\tmp4083.tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp4083.tmp.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of WriteProcessMemory
    PID:4904
  - - C:\Windows\SysWOW64\schtasks.exe
      /create /tn COMSurrogate /st 00:00 /du 9999:59 /sc once /ri 1 /f /tr "powershell.exe -windowstyle hidden"
      4⤵
      Creates scheduled task(s)
      PID:4864
  - - C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Get-Variable.exe
      "C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Get-Variable.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious use of WriteProcessMemory
      PID:2196
    - - C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Get-Variable.exe
        
        "C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Get-Variable.exe"
        5⤵
        Executes dropped EXE
        
        PID:376

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -windowstyle hidden
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4788
- C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Get-Variable.exe
  "C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Get-Variable.exe" Name host ValueOnly True
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:3196

C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Get-Variable.exe
"C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Get-Variable.exe"
1⤵
- Executes dropped EXE
PID:3200

C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Get-Variable.exe
"C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Get-Variable.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3140

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

Get-Variable.exe

Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Get-Variable.exe
Size 52KB
SHA256 aa2d97b5be06be67ec04774ad681da6113ee2b4929c0539929bbac19926682c8
MD5 d8e1495b46cded57eb1423b8bb789834
SHA1 db64bc20550e51c602dbb92d07c8f02842efebcc
SHA512 8b785d7f8d5fdf12dd9a5414050d403e861fd3f9ac09bceebc57b2f178c6f145389783ed1035b5e6f9b627b3d4d978f3ad9bf8195d92e20f585ef92667e4cabb
SSDEEP 768:kbx1xSQBLHSq0ItD/hf3aLFLPnWQUQ7x6ziT:kb5SyHRJD/hf3aLlKcxeiT
MD5 SHA1 SHA512 SSDEEP

Submit Download

Get-Variable.exe

Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Get-Variable.exe
Size 52KB
SHA256 aa2d97b5be06be67ec04774ad681da6113ee2b4929c0539929bbac19926682c8
MD5 d8e1495b46cded57eb1423b8bb789834
SHA1 db64bc20550e51c602dbb92d07c8f02842efebcc
SHA512 8b785d7f8d5fdf12dd9a5414050d403e861fd3f9ac09bceebc57b2f178c6f145389783ed1035b5e6f9b627b3d4d978f3ad9bf8195d92e20f585ef92667e4cabb
SSDEEP 768:kbx1xSQBLHSq0ItD/hf3aLFLPnWQUQ7x6ziT:kb5SyHRJD/hf3aLlKcxeiT
MD5 SHA1 SHA512 SSDEEP

Submit Download

Get-Variable.exe

Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Get-Variable.exe
Size 52KB
SHA256 aa2d97b5be06be67ec04774ad681da6113ee2b4929c0539929bbac19926682c8
MD5 d8e1495b46cded57eb1423b8bb789834
SHA1 db64bc20550e51c602dbb92d07c8f02842efebcc
SHA512 8b785d7f8d5fdf12dd9a5414050d403e861fd3f9ac09bceebc57b2f178c6f145389783ed1035b5e6f9b627b3d4d978f3ad9bf8195d92e20f585ef92667e4cabb
SSDEEP 768:kbx1xSQBLHSq0ItD/hf3aLFLPnWQUQ7x6ziT:kb5SyHRJD/hf3aLlKcxeiT
MD5 SHA1 SHA512 SSDEEP

Submit Download

Get-Variable.exe

Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Get-Variable.exe
Size 52KB
SHA256 aa2d97b5be06be67ec04774ad681da6113ee2b4929c0539929bbac19926682c8
MD5 d8e1495b46cded57eb1423b8bb789834
SHA1 db64bc20550e51c602dbb92d07c8f02842efebcc
SHA512 8b785d7f8d5fdf12dd9a5414050d403e861fd3f9ac09bceebc57b2f178c6f145389783ed1035b5e6f9b627b3d4d978f3ad9bf8195d92e20f585ef92667e4cabb
SSDEEP 768:kbx1xSQBLHSq0ItD/hf3aLFLPnWQUQ7x6ziT:kb5SyHRJD/hf3aLlKcxeiT
MD5 SHA1 SHA512 SSDEEP

Submit Download

Get-Variable.exe

Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Get-Variable.exe
Size 52KB
SHA256 aa2d97b5be06be67ec04774ad681da6113ee2b4929c0539929bbac19926682c8
MD5 d8e1495b46cded57eb1423b8bb789834
SHA1 db64bc20550e51c602dbb92d07c8f02842efebcc
SHA512 8b785d7f8d5fdf12dd9a5414050d403e861fd3f9ac09bceebc57b2f178c6f145389783ed1035b5e6f9b627b3d4d978f3ad9bf8195d92e20f585ef92667e4cabb
SSDEEP 768:kbx1xSQBLHSq0ItD/hf3aLFLPnWQUQ7x6ziT:kb5SyHRJD/hf3aLlKcxeiT
MD5 SHA1 SHA512 SSDEEP

Submit Download

Get-Variable.exe

Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Get-Variable.exe
Size 52KB
SHA256 aa2d97b5be06be67ec04774ad681da6113ee2b4929c0539929bbac19926682c8
MD5 d8e1495b46cded57eb1423b8bb789834
SHA1 db64bc20550e51c602dbb92d07c8f02842efebcc
SHA512 8b785d7f8d5fdf12dd9a5414050d403e861fd3f9ac09bceebc57b2f178c6f145389783ed1035b5e6f9b627b3d4d978f3ad9bf8195d92e20f585ef92667e4cabb
SSDEEP 768:kbx1xSQBLHSq0ItD/hf3aLFLPnWQUQ7x6ziT:kb5SyHRJD/hf3aLlKcxeiT
MD5 SHA1 SHA512 SSDEEP

Submit Download

tmp4083.tmp.exe

Path C:\Users\Admin\AppData\Local\Temp\tmp4083.tmp.exe
Size 52KB
SHA256 aa2d97b5be06be67ec04774ad681da6113ee2b4929c0539929bbac19926682c8
MD5 d8e1495b46cded57eb1423b8bb789834
SHA1 db64bc20550e51c602dbb92d07c8f02842efebcc
SHA512 8b785d7f8d5fdf12dd9a5414050d403e861fd3f9ac09bceebc57b2f178c6f145389783ed1035b5e6f9b627b3d4d978f3ad9bf8195d92e20f585ef92667e4cabb
SSDEEP 768:kbx1xSQBLHSq0ItD/hf3aLFLPnWQUQ7x6ziT:kb5SyHRJD/hf3aLlKcxeiT
MD5 SHA1 SHA512 SSDEEP

Submit Download

tmp4083.tmp.exe

Path C:\Users\Admin\AppData\Local\Temp\tmp4083.tmp.exe
Size 52KB
SHA256 aa2d97b5be06be67ec04774ad681da6113ee2b4929c0539929bbac19926682c8
MD5 d8e1495b46cded57eb1423b8bb789834
SHA1 db64bc20550e51c602dbb92d07c8f02842efebcc
SHA512 8b785d7f8d5fdf12dd9a5414050d403e861fd3f9ac09bceebc57b2f178c6f145389783ed1035b5e6f9b627b3d4d978f3ad9bf8195d92e20f585ef92667e4cabb
SSDEEP 768:kbx1xSQBLHSq0ItD/hf3aLFLPnWQUQ7x6ziT:kb5SyHRJD/hf3aLlKcxeiT
MD5 SHA1 SHA512 SSDEEP

Submit Download

tmp4083.tmp.exe

Path C:\Users\Admin\AppData\Local\Temp\tmp4083.tmp.exe
Size 52KB
SHA256 aa2d97b5be06be67ec04774ad681da6113ee2b4929c0539929bbac19926682c8
MD5 d8e1495b46cded57eb1423b8bb789834
SHA1 db64bc20550e51c602dbb92d07c8f02842efebcc
SHA512 8b785d7f8d5fdf12dd9a5414050d403e861fd3f9ac09bceebc57b2f178c6f145389783ed1035b5e6f9b627b3d4d978f3ad9bf8195d92e20f585ef92667e4cabb
SSDEEP 768:kbx1xSQBLHSq0ItD/hf3aLFLPnWQUQ7x6ziT:kb5SyHRJD/hf3aLlKcxeiT
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/3140-160-0x00000000007F3000-0x00000000007F9000-memory.dmp

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memory/3196-157-0x0000000000EC3000-0x0000000000EC9000-memory.dmp

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memory/3432-132-0x0000000000220000-0x00000000002B0000-memory.dmp

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memory/3432-133-0x00007FFE31A30000-0x00007FFE324F1000-memory.dmp

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memory/3432-141-0x00007FFE31A30000-0x00007FFE324F1000-memory.dmp

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memory/4788-151-0x0000029A20CD0000-0x0000029A20CF2000-memory.dmp

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memory/4788-153-0x00007FFE31A30000-0x00007FFE324F1000-memory.dmp

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memory/4788-152-0x0000029A20D70000-0x0000029A20DB4000-memory.dmp

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memory/4788-154-0x0000029A21190000-0x0000029A21206000-memory.dmp

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memory/4788-164-0x00007FFE31A30000-0x00007FFE324F1000-memory.dmp

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memory/4904-138-0x0000000000400000-0x0000000000407000-memory.dmp

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memory/4904-150-0x0000000000400000-0x0000000000407000-memory.dmp

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memory/4904-142-0x0000000000400000-0x0000000000407000-memory.dmp

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memory/4904-140-0x0000000000400000-0x0000000000407000-memory.dmp

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