gcleaner | 37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27

General

Target
37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
Size 345KB
Sample240527-tecqrahf3x
SHA256 37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27
MD5 7578297a8580620962ff86f96df1de95
SHA1 22771b59a8dfba6c3b6fa091133cef229f7296f3
SHA512 7343524ec5cfea431981fa61eafa9b6878b2409ea607413cd3dba68b85b905f87d07ca45eba53d8ed4984a4bd3014dd271b5d81270c11dc408a7867d4fe4b87c
SSDEEP 6144:ICAp7usNvlYXTX9ZTB1wwcB1niwxPKdLi/:VA5uUkfTB1wwcLiwFK
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

gcleaner loader

Malware Config

Extracted

Family

gcleaner

C2

185.172.128.90
5.42.64.56
185.172.128.69

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Downloads MZ/PE file
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 10 IoCs

pid	pid_target	Process	procid_target
712	2332	WerFault.exe	77
1516	2332	WerFault.exe	77
2492	2332	WerFault.exe	77
1828	2332	WerFault.exe	77
4900	2332	WerFault.exe	77
2840	2332	WerFault.exe	77
5064	2332	WerFault.exe	77
3684	2332	WerFault.exe	77
4196	2332	WerFault.exe	77
1928	2332	WerFault.exe	77

Kills process with taskkill 1 IoCs

evasion

pid	Process
4944	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4944	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 3428	2332	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe	97
PID 2332 wrote to memory of 3428	2332	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe	97
PID 2332 wrote to memory of 3428	2332	37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe	97
PID 3428 wrote to memory of 4944	3428	cmd.exe	100
PID 3428 wrote to memory of 4944	3428	cmd.exe	100
PID 3428 wrote to memory of 4944	3428	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe
"C:\Users\Admin\AppData\Local\Temp\37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 476
  2⤵
  - Program crash
  PID:712
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 792
  2⤵
  - Program crash
  PID:1516
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 836
  2⤵
  - Program crash
  PID:2492
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 856
  2⤵
  - Program crash
  PID:1828
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 880
  2⤵
  - Program crash
  PID:4900
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 1000
  2⤵
  - Program crash
  PID:2840
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 1084
  2⤵
  - Program crash
  PID:5064
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 1364
  2⤵
  - Program crash
  PID:3684
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 1664
  2⤵
  - Program crash
  PID:4196
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3428
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "37407680b9ef3211638b71cb079a7e4e20f97bf7c5ee18656ad11c483d0ccb27.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4944
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2332 -s 488
  2⤵
  - Program crash
  PID:1928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2332 -ip 2332
1⤵
PID:4280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2332 -ip 2332
1⤵
PID:792

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2332 -ip 2332
1⤵
PID:2920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2332 -ip 2332
1⤵
PID:5068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 2332 -ip 2332
1⤵
PID:784

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 2332 -ip 2332
1⤵
PID:436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 2332 -ip 2332
1⤵
PID:956

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2332 -ip 2332
1⤵
PID:2376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 2332 -ip 2332
1⤵
PID:4016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2332 -ip 2332
1⤵
PID:1012

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

advdlc[1].htm

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\D1O30EO5\advdlc[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

Submit Download

memory/2332-3-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/2332-2-0x0000000002210000-0x000000000224C000-memory.dmp

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memory/2332-1-0x00000000022C0000-0x00000000023C0000-memory.dmp

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memory/2332-8-0x0000000010000000-0x000000001001C000-memory.dmp

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memory/2332-14-0x0000000000400000-0x0000000001FA2000-memory.dmp

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memory/2332-19-0x00000000022C0000-0x00000000023C0000-memory.dmp

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memory/2332-23-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/2332-28-0x0000000000400000-0x0000000001FA2000-memory.dmp

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memory/2332-35-0x0000000000400000-0x0000000000440000-memory.dmp

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memory/2332-34-0x0000000000400000-0x0000000001FA2000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads