ec2eb6345f2e7ef75f0e38a7bd4c60f420a0ff02a8e9b37005855409f0e23aec

Analysis

max time kernel
91s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
16/12/2022, 16:04

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General

Target
file.exe
Size 2.5MB
Sample221216-thxkbsfa43
SHA256 ec2eb6345f2e7ef75f0e38a7bd4c60f420a0ff02a8e9b37005855409f0e23aec
MD5 59b0162612709d8cdd72ca23557ad85f
SHA1 fca13863218cec25705a9343686b126744273bc1
SHA512 48e257a0732b0cc9069aa7f56923e1db684db624ad0677cacf556bed0c7beeb2be13407b048f1b907edec87f9e90c5e8bc11743643b6889691339c80e9cc5d90
SSDEEP 49152:ROjmMTyuRnhrFGnVpVYK/nmO+ZNAuRfnmRqfkjjr:2R7K/nmO+ZNAuR8nr
MD5 SHA1 SHA512 SSDEEP

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1328	GAPOSUR.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-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	GAPOSUR.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

pid	Process
1616	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3532	timeout.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
4272	file.exe
4272	file.exe
628	powershell.exe
1508	powershell.exe
628	powershell.exe
1508	powershell.exe
1328	GAPOSUR.exe
1328	GAPOSUR.exe
2596	powershell.exe
2596	powershell.exe
1888	powershell.exe
1888	powershell.exe
1328	GAPOSUR.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4272	file.exe
Token: SeDebugPrivilege	628	powershell.exe
Token: SeDebugPrivilege	1508	powershell.exe
Token: SeDebugPrivilege	1328	GAPOSUR.exe
Token: SeDebugPrivilege	2596	powershell.exe
Token: SeDebugPrivilege	1888	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4272 wrote to memory of 628	4272	file.exe	79
PID 4272 wrote to memory of 628	4272	file.exe	79
PID 4272 wrote to memory of 1508	4272	file.exe	83
PID 4272 wrote to memory of 1508	4272	file.exe	83
PID 4272 wrote to memory of 1600	4272	file.exe	81
PID 4272 wrote to memory of 1600	4272	file.exe	81
PID 1600 wrote to memory of 3532	1600	cmd.exe	85
PID 1600 wrote to memory of 3532	1600	cmd.exe	85
PID 1600 wrote to memory of 1328	1600	cmd.exe	86
PID 1600 wrote to memory of 1328	1600	cmd.exe	86
PID 1328 wrote to memory of 2596	1328	GAPOSUR.exe	87
PID 1328 wrote to memory of 2596	1328	GAPOSUR.exe	87
PID 1328 wrote to memory of 1888	1328	GAPOSUR.exe	88
PID 1328 wrote to memory of 1888	1328	GAPOSUR.exe	88
PID 1328 wrote to memory of 1844	1328	GAPOSUR.exe	91
PID 1328 wrote to memory of 1844	1328	GAPOSUR.exe	91
PID 1844 wrote to memory of 1616	1844	cmd.exe	93
PID 1844 wrote to memory of 1616	1844	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4272
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'C:\ProgramData'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:628
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp68C1.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1600
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:3532
- - C:\ProgramData\cloud\GAPOSUR.exe
    "C:\ProgramData\cloud\GAPOSUR.exe"
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1328
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\ProgramData'
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2596
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)'
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1888
  - - C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "GAPOSUR" /tr "C:\ProgramData\cloud\GAPOSUR.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1844
    - - C:\Windows\system32\schtasks.exe
        
        schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "GAPOSUR" /tr "C:\ProgramData\cloud\GAPOSUR.exe"
        5⤵
        Creates scheduled task(s)
        
        PID:1616
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "powershell" -Command Add-MpPreference -ExclusionPath 'Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1508

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

GAPOSUR.exe

Path C:\ProgramData\cloud\GAPOSUR.exe
Size 2.5MB
SHA256 ec2eb6345f2e7ef75f0e38a7bd4c60f420a0ff02a8e9b37005855409f0e23aec
MD5 59b0162612709d8cdd72ca23557ad85f
SHA1 fca13863218cec25705a9343686b126744273bc1
SHA512 48e257a0732b0cc9069aa7f56923e1db684db624ad0677cacf556bed0c7beeb2be13407b048f1b907edec87f9e90c5e8bc11743643b6889691339c80e9cc5d90
SSDEEP 49152:ROjmMTyuRnhrFGnVpVYK/nmO+ZNAuRfnmRqfkjjr:2R7K/nmO+ZNAuR8nr
MD5 SHA1 SHA512 SSDEEP

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GAPOSUR.exe

Path C:\ProgramData\cloud\GAPOSUR.exe
Size 2.5MB
SHA256 ec2eb6345f2e7ef75f0e38a7bd4c60f420a0ff02a8e9b37005855409f0e23aec
MD5 59b0162612709d8cdd72ca23557ad85f
SHA1 fca13863218cec25705a9343686b126744273bc1
SHA512 48e257a0732b0cc9069aa7f56923e1db684db624ad0677cacf556bed0c7beeb2be13407b048f1b907edec87f9e90c5e8bc11743643b6889691339c80e9cc5d90
SSDEEP 49152:ROjmMTyuRnhrFGnVpVYK/nmO+ZNAuRfnmRqfkjjr:2R7K/nmO+ZNAuR8nr
MD5 SHA1 SHA512 SSDEEP

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powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
MD5 77d622bb1a5b250869a3238b9bc1402b
SHA1 d47f4003c2554b9dfc4c16f22460b331886b191b
SHA512 d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
MD5 77d622bb1a5b250869a3238b9bc1402b
SHA1 d47f4003c2554b9dfc4c16f22460b331886b191b
SHA512 d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 b99f3c778a047e0348c92c16e0419fa29418d10d0fec61ad8283e92a094a2b32
MD5 aeceee3981c528bdc5e1c635b65d223d
SHA1 de9939ed37edca6772f5cdd29f6a973b36b7d31b
SHA512 df48285f38e9284efdbd9f8d99e2e94a46fb5465953421ab88497b73ae06895b98ea5c98796560810a6f342c31a9112ea87e03cd3e267fd8518d7585f492a8fb
MD5 SHA1 SHA512

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tmp68C1.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp68C1.tmp.bat
Size 141B
SHA256 8ff2188b2a91bd3a7e68398f83f52b3f554760845fd92509a1429b8e47c5666c
MD5 bc1f443534099525e98f897e82e22ccb
SHA1 9bb430fbbfd21da5b8d62a99105273a164862242
SHA512 5ff56e0331e13d7a4a41867cde7bb299749a66224b2501abcc8c9a319272f24b21345bd5f96a72e489e3cd21b3bac8f7fd65dcc01073fdfdf0aa5a75b06f6642
MD5 SHA1 SHA512

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memory/628-156-0x00007FFAF2C50000-0x00007FFAF3711000-memory.dmp

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memory/628-150-0x000001B144040000-0x000001B144062000-memory.dmp

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memory/1328-176-0x00007FFAF2C50000-0x00007FFAF3711000-memory.dmp

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memory/1328-162-0x00007FFB10750000-0x00007FFB107EE000-memory.dmp

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memory/1328-190-0x0000000001000000-0x0000000001043000-memory.dmp

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memory/1328-169-0x00007FFB0FFA0000-0x00007FFB0FFCB000-memory.dmp

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memory/1328-166-0x00007FFAF2C50000-0x00007FFAF3711000-memory.dmp

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memory/1328-189-0x00007FFAF2C50000-0x00007FFAF3711000-memory.dmp

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memory/1328-188-0x00000000003A0000-0x000000000068A000-memory.dmp

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memory/1328-186-0x00007FFB0DD60000-0x00007FFB0DD9B000-memory.dmp

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memory/1328-185-0x00007FFB106E0000-0x00007FFB1074B000-memory.dmp

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memory/1328-184-0x00007FFAEDE80000-0x00007FFAEDF82000-memory.dmp

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memory/1328-183-0x00007FFAF14A0000-0x00007FFAF14D5000-memory.dmp

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memory/1328-181-0x00007FFB0F290000-0x00007FFB0F2B7000-memory.dmp

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memory/1328-168-0x0000000001000000-0x0000000001043000-memory.dmp

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memory/1328-164-0x00007FFAF45B0000-0x00007FFAF466D000-memory.dmp

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memory/1328-167-0x00000000003A0000-0x000000000068A000-memory.dmp

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memory/1328-171-0x00007FFAF4460000-0x00007FFAF45AE000-memory.dmp

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memory/1328-161-0x00007FFAF4670000-0x00007FFAF471A000-memory.dmp

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memory/1328-163-0x00007FFB0C8B0000-0x00007FFB0C8C2000-memory.dmp

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memory/1328-170-0x00000000003A0000-0x000000000068A000-memory.dmp

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memory/1328-165-0x00007FFB0F2C0000-0x00007FFB0F461000-memory.dmp

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memory/1508-155-0x00007FFAF2C50000-0x00007FFAF3711000-memory.dmp

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memory/1888-178-0x00007FFAF2C50000-0x00007FFAF3711000-memory.dmp

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memory/1888-187-0x00007FFAF2C50000-0x00007FFAF3711000-memory.dmp

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memory/2596-177-0x00007FFAF2C50000-0x00007FFAF3711000-memory.dmp

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memory/2596-180-0x00007FFAF2C50000-0x00007FFAF3711000-memory.dmp

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memory/4272-139-0x00007FFB0FFA0000-0x00007FFB0FFCB000-memory.dmp

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memory/4272-135-0x00007FFB0C8B0000-0x00007FFB0C8C2000-memory.dmp

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memory/4272-138-0x00007FFAF2C50000-0x00007FFAF3711000-memory.dmp

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memory/4272-133-0x00007FFB02330000-0x00007FFB023DA000-memory.dmp

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memory/4272-136-0x00007FFAF4820000-0x00007FFAF48DD000-memory.dmp

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memory/4272-134-0x00007FFB10750000-0x00007FFB107EE000-memory.dmp

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memory/4272-140-0x00000000001D0000-0x00000000004BA000-memory.dmp

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memory/4272-144-0x00007FFAF2C50000-0x00007FFAF3711000-memory.dmp

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memory/4272-141-0x00007FFAF46D0000-0x00007FFAF481E000-memory.dmp

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memory/4272-142-0x00000000001D0000-0x00000000004BA000-memory.dmp

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memory/4272-137-0x00007FFB0F2C0000-0x00007FFB0F461000-memory.dmp

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memory/4272-149-0x00007FFAF2C50000-0x00007FFAF3711000-memory.dmp

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memory/4272-148-0x00000000001D0000-0x00000000004BA000-memory.dmp

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memory/4272-143-0x0000000000E00000-0x0000000000E43000-memory.dmp

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