529b1e59756b3db5e47e11801940a85a90ecb84771f480fc08a0979ed3a942ce

General

Target

c4d9d92d02453ba90ce7cb7dd36129c6.exe
Size

225KB
MD5

c4d9d92d02453ba90ce7cb7dd36129c6
SHA1

bf19f1a04314688314fa2b53df67bf02b6e62750
SHA256

529b1e59756b3db5e47e11801940a85a90ecb84771f480fc08a0979ed3a942ce
SHA512

84e979427fb9202249c3db7d87482639827c03da78b595801a6b3f9aa3d41f437babcae604c3b55b99c8175649ec6cc3ebc88db4b72f3bd3386e73999be8f7ff
SSDEEP

3072:d3QfUsjDosf+UtmBgajmOPXqAYYccKAl0gPXJ/H9RSAYijDmRJ:B6mSimOPXqAYhC5PXJf9RSiuL

Score

7^/10

Malware Config

Signatures

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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	c4d9d92d02453ba90ce7cb7dd36129c6.exe

Executes dropped EXE 1 IoCs

pid	Process
4160	jigrlb.exe

Loads dropped DLL 1 IoCs

pid	Process
4160	jigrlb.exe

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
4376	3940	WerFault.exe	87
944	4160	WerFault.exe	103

Kills process with taskkill 1 IoCs

evasion

pid	Process
4976	taskkill.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2540	PING.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4160	jigrlb.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4976	taskkill.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4160	jigrlb.exe
4160	jigrlb.exe
4160	jigrlb.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4160	jigrlb.exe
4160	jigrlb.exe
4160	jigrlb.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3940 wrote to memory of 1000	3940	c4d9d92d02453ba90ce7cb7dd36129c6.exe	97
PID 3940 wrote to memory of 1000	3940	c4d9d92d02453ba90ce7cb7dd36129c6.exe	97
PID 3940 wrote to memory of 1000	3940	c4d9d92d02453ba90ce7cb7dd36129c6.exe	97
PID 1000 wrote to memory of 4976	1000	cmd.exe	99
PID 1000 wrote to memory of 4976	1000	cmd.exe	99
PID 1000 wrote to memory of 4976	1000	cmd.exe	99
PID 1000 wrote to memory of 2540	1000	cmd.exe	101
PID 1000 wrote to memory of 2540	1000	cmd.exe	101
PID 1000 wrote to memory of 2540	1000	cmd.exe	101
PID 1000 wrote to memory of 4160	1000	cmd.exe	103
PID 1000 wrote to memory of 4160	1000	cmd.exe	103
PID 1000 wrote to memory of 4160	1000	cmd.exe	103

C:\Users\Admin\AppData\Local\Temp\c4d9d92d02453ba90ce7cb7dd36129c6.exe
"C:\Users\Admin\AppData\Local\Temp\c4d9d92d02453ba90ce7cb7dd36129c6.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3940
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3940 -s 548
  2⤵
  - Program crash
  PID:4376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 3940 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\c4d9d92d02453ba90ce7cb7dd36129c6.exe" & start C:\Users\Admin\AppData\Local\jigrlb.exe -f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1000
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /pid 3940
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4976
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 3 127.1
    3⤵
    - Runs ping.exe
    PID:2540
- - C:\Users\Admin\AppData\Local\jigrlb.exe
    C:\Users\Admin\AppData\Local\jigrlb.exe -f
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    PID:4160
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4160 -s 560
      4⤵
      Program crash
      PID:944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3940 -ip 3940
1⤵
PID:2116

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4160 -ip 4160
1⤵
PID:1500

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\jigrlb.exe

Filesize
225KB

MD5
c4d9d92d02453ba90ce7cb7dd36129c6

SHA1
bf19f1a04314688314fa2b53df67bf02b6e62750

SHA256
529b1e59756b3db5e47e11801940a85a90ecb84771f480fc08a0979ed3a942ce

SHA512
84e979427fb9202249c3db7d87482639827c03da78b595801a6b3f9aa3d41f437babcae604c3b55b99c8175649ec6cc3ebc88db4b72f3bd3386e73999be8f7ff

Download Submit
memory/3940-0-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download
memory/3940-1-0x0000000001000000-0x00000000010D0000-memory.dmp

Filesize
832KB

Download
memory/3940-2-0x0000000000550000-0x0000000000552000-memory.dmp

Filesize
8KB

Download
memory/3940-4-0x0000000001000000-0x00000000010D0000-memory.dmp

Filesize
832KB

Download
memory/4160-15-0x0000000000BC0000-0x0000000000BC2000-memory.dmp

Filesize
8KB

Download
memory/4160-11-0x0000000001000000-0x00000000010D0000-memory.dmp

Filesize
832KB

Download
memory/4160-13-0x0000000001000000-0x00000000010D0000-memory.dmp

Filesize
832KB

Download
memory/4160-8-0x0000000000BC0000-0x0000000000BC2000-memory.dmp

Filesize
8KB

Download
memory/4160-16-0x0000000001000000-0x00000000010D0000-memory.dmp

Filesize
832KB

Download
memory/4160-18-0x0000000001000000-0x00000000010D0000-memory.dmp

Filesize
832KB

Download
memory/4160-20-0x0000000001000000-0x00000000010D0000-memory.dmp

Filesize
832KB

Download
memory/4160-22-0x0000000001000000-0x00000000010D0000-memory.dmp

Filesize
832KB

Download
memory/4160-25-0x0000000001000000-0x00000000010D0000-memory.dmp

Filesize
832KB

Download
memory/4160-27-0x0000000001000000-0x00000000010D0000-memory.dmp

Filesize
832KB

Download
memory/4160-29-0x0000000001000000-0x00000000010D0000-memory.dmp

Filesize
832KB

Download
memory/4160-31-0x0000000001000000-0x00000000010D0000-memory.dmp

Filesize
832KB

Download

Analysis

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