47d178214e35dc1d7dca9886abd3fc3e715a934c5e8540e9f0879d5d1c8addee

Resubmissions

28-01-2022 12:16

220128-pfymdsccbk 10

19-01-2022 09:07

220119-k3bzpagfak 10

Analysis

max time kernel
122s
max time network
122s
platform
windows10_x64
resource
win10-en-20211208
submitted
28-01-2022 12:16

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Report Analysis Logs

General

Target

f373ebb32b2a836b78f932fd436ec49a.exe
Size

492KB
MD5

f373ebb32b2a836b78f932fd436ec49a
SHA1

fdf344a3d5684433e689b61de782d5bd29f185b9
SHA256

47d178214e35dc1d7dca9886abd3fc3e715a934c5e8540e9f0879d5d1c8addee
SHA512

b5fadc8d050d2bae9b1f657f33d8b23d6ac0eb39fb962a64059fe5e39c73a85e5f998a53622e06811616c55d037b115a853794841a2f16354b65af3ca1ffdb48

Score

10^/10

suricata

Malware Config

Signatures

suricata: ET MALWARE OneLouder EXE download possibly installing Zeus P2P
suricata: ET MALWARE OneLouder EXE download possibly installing Zeus P2P
suricata
suricata: ET MALWARE Probable OneLouder downloader (Zeus P2P) exe download
suricata: ET MALWARE Probable OneLouder downloader (Zeus P2P) exe download
suricata
suricata: ET MALWARE PurpleFox Backdoor/Rootkit Download Request M1
suricata: ET MALWARE PurpleFox Backdoor/Rootkit Download Request M1
suricata
suricata: ET MALWARE PurpleFox Backdoor/Rootkit Download Server Response M1
suricata: ET MALWARE PurpleFox Backdoor/Rootkit Download Server Response M1
suricata

Executes dropped EXE 4 IoCs

pid	Process
1188	7zz.exe
3288	ojbkcg.exe
1480	111.exe
2740	7z.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-1-5-21-369956170-74428499-1628131376-1000\Control Panel\International\Geo\Nation	111.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\startup\╧╘┐¿╟²╢».lnk	7z.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\startup\╧╘┐¿╟²╢».lnk	7z.exe

Loads dropped DLL 2 IoCs

pid	Process
3288	ojbkcg.exe
2740	7z.exe

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

System Information Discovery
T1082

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000_Classes\Local Settings	ojbkcg.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance	111.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2708	f373ebb32b2a836b78f932fd436ec49a.exe
2708	f373ebb32b2a836b78f932fd436ec49a.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeRestorePrivilege	2740	7z.exe
Token: 35	2740	7z.exe
Token: SeSecurityPrivilege	2740	7z.exe
Token: SeSecurityPrivilege	2740	7z.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1480	111.exe
1480	111.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2708 wrote to memory of 1188	2708	f373ebb32b2a836b78f932fd436ec49a.exe	68
PID 2708 wrote to memory of 1188	2708	f373ebb32b2a836b78f932fd436ec49a.exe	68
PID 2708 wrote to memory of 1188	2708	f373ebb32b2a836b78f932fd436ec49a.exe	68
PID 2708 wrote to memory of 3288	2708	f373ebb32b2a836b78f932fd436ec49a.exe	70
PID 2708 wrote to memory of 3288	2708	f373ebb32b2a836b78f932fd436ec49a.exe	70
PID 1480 wrote to memory of 2740	1480	111.exe	75
PID 1480 wrote to memory of 2740	1480	111.exe	75
PID 1480 wrote to memory of 2740	1480	111.exe	75

C:\Users\Admin\AppData\Local\Temp\f373ebb32b2a836b78f932fd436ec49a.exe
"C:\Users\Admin\AppData\Local\Temp\f373ebb32b2a836b78f932fd436ec49a.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2708
- C:\Users\Public\Videos\1643631424\7zz.exe
  "C:\Users\Public\Videos\1643631424\7zz.exe" X -ep2 C:\Users\Public\Videos\1643631424\1.rar C:\Users\Public\Videos\1643631424
  2⤵
  - Executes dropped EXE
  PID:1188
- C:\Users\Public\Videos\1643631424\ojbkcg.exe
  "C:\Users\Public\Videos\1643631424\ojbkcg.exe" -a
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Modifies registry class
  PID:3288

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:3496

C:\Users\Public\Documents\auto\111.exe
"C:\Users\Public\Documents\auto\111.exe"
1⤵
- Executes dropped EXE
- Checks computer location settings
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1480
- C:\ProgramData\7z.exe
  "C:\ProgramData\7z.exe" x C:\ProgramData\bb.zip -oC:\Users\Admin\AppData\Roaming\Microsoft\Windows
  2⤵
  - Executes dropped EXE
  - Drops startup file
  - Loads dropped DLL
  - Suspicious use of AdjustPrivilegeToken
  PID:2740

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

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

memory/3288-131-0x0000000002E20000-0x0000000003695000-memory.dmp

Filesize
8.5MB

Download
memory/3288-126-0x0000000180000000-0x00000001808AB000-memory.dmp

Filesize
8.7MB

Download