gcleaner | edee9e5dad08e72deb2ef9e5b872d9c4e84e90d1ed8a27a33300edc32d62d084

General

Target

ff4bac3b34630dfdf6f495bf8998c9e7_JaffaCakes118.exe
Size

398KB
MD5

ff4bac3b34630dfdf6f495bf8998c9e7
SHA1

3a9457a39c51330928043492ac09e9683c9f90a0
SHA256

edee9e5dad08e72deb2ef9e5b872d9c4e84e90d1ed8a27a33300edc32d62d084
SHA512

4b91eeda2ee00428a40e4b1c29b1758ef9890a4298adf30185b37247646b1dc95f2e40b7f3c3f9c5570d490326fc72e6abfbfe82548cae2e757f2f7143c06ad9
SSDEEP

6144:/oYTiypE8Ykgfgc0CmYvg+k6zDMv1Sp0jUqDFxbqJL64WExOOhxxdeTr/ekI:bpYIpRAk6zDqSp0ZF6L6k1zxd6L

Score

10^/10

gcleaner onlylogger discovery loader

Malware Config

Extracted

Family

gcleaner

C2

gcl-page.biz

194.145.227.161

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Gcleaner family
gcleaner
OnlyLogger
A tiny loader that uses IPLogger to get its payload.
loader onlylogger
Onlylogger family
onlylogger

OnlyLogger payload 5 IoCs

resource	yara_rule
behavioral2/memory/3252-2-0x00000000006B0000-0x00000000006F8000-memory.dmp	family_onlylogger
behavioral2/memory/3252-3-0x0000000000400000-0x000000000044B000-memory.dmp	family_onlylogger
behavioral2/memory/3252-5-0x00000000006B0000-0x00000000006F8000-memory.dmp	family_onlylogger
behavioral2/memory/3252-6-0x0000000000400000-0x000000000044B000-memory.dmp	family_onlylogger
behavioral2/memory/3252-4-0x0000000000400000-0x0000000000470000-memory.dmp	family_onlylogger

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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	ff4bac3b34630dfdf6f495bf8998c9e7_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 7 IoCs

pid	pid_target	Process	procid_target
5100	3252	WerFault.exe	82
1628	3252	WerFault.exe	82
3424	3252	WerFault.exe	82
868	3252	WerFault.exe	82
2288	3252	WerFault.exe	82
4876	3252	WerFault.exe	82
3276	3252	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ff4bac3b34630dfdf6f495bf8998c9e7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2436	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2436	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3252 wrote to memory of 3556	3252	ff4bac3b34630dfdf6f495bf8998c9e7_JaffaCakes118.exe	98
PID 3252 wrote to memory of 3556	3252	ff4bac3b34630dfdf6f495bf8998c9e7_JaffaCakes118.exe	98
PID 3252 wrote to memory of 3556	3252	ff4bac3b34630dfdf6f495bf8998c9e7_JaffaCakes118.exe	98
PID 3556 wrote to memory of 2436	3556	cmd.exe	102
PID 3556 wrote to memory of 2436	3556	cmd.exe	102
PID 3556 wrote to memory of 2436	3556	cmd.exe	102

C:\Users\Admin\AppData\Local\Temp\ff4bac3b34630dfdf6f495bf8998c9e7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ff4bac3b34630dfdf6f495bf8998c9e7_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3252
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 688
  2⤵
  - Program crash
  PID:5100
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 784
  2⤵
  - Program crash
  PID:1628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 792
  2⤵
  - Program crash
  PID:3424
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 936
  2⤵
  - Program crash
  PID:868
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 932
  2⤵
  - Program crash
  PID:2288
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 968
  2⤵
  - Program crash
  PID:4876
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "ff4bac3b34630dfdf6f495bf8998c9e7_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\ff4bac3b34630dfdf6f495bf8998c9e7_JaffaCakes118.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3556
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "ff4bac3b34630dfdf6f495bf8998c9e7_JaffaCakes118.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2436
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 1028
  2⤵
  - Program crash
  PID:3276

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3252 -ip 3252
1⤵
PID:2640

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3252 -ip 3252
1⤵
PID:2160

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3252 -ip 3252
1⤵
PID:4292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 3252 -ip 3252
1⤵
PID:2440

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3252 -ip 3252
1⤵
PID:4080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3252 -ip 3252
1⤵
PID:2008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 3252 -ip 3252
1⤵
PID:3596

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3252-1-0x00000000004E0000-0x00000000005E0000-memory.dmp

Filesize
1024KB

Download
memory/3252-2-0x00000000006B0000-0x00000000006F8000-memory.dmp

Filesize
288KB

Download
memory/3252-3-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3252-5-0x00000000006B0000-0x00000000006F8000-memory.dmp

Filesize
288KB

Download
memory/3252-6-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/3252-4-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download

Analysis

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