58faf4c2eff5d2a3409caeff1bb077f55a60e05f64092a4806bd6fa7dbf672e0

General

Target

58faf4c2eff5d2a3409caeff1bb077f55a60e05f64092a4806bd6fa7dbf672e0.exe
Size

269KB
MD5

2316e39cef4c46349baa3cec185bc1d0
SHA1

847db31f64d18abe40bc837841e0f2755990a8a3
SHA256

58faf4c2eff5d2a3409caeff1bb077f55a60e05f64092a4806bd6fa7dbf672e0
SHA512

bcba9f7461ecab2ce1ebbef365695b0319495f3bb1a9dd7c1230ba67efb6f0991e962174351a95969840b6d5b684d304a0bbce70bc66e5d3e592d0dba799909a
SSDEEP

6144:LsaocyLCp2Ld197bDwEgCwXLxHN1nknA36yh9t5pg0jR0zyz:Ltoba4d3wFL90AKs9RgOmyz

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2168	ins5.exe
5060	4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	ins5.exe

Loads dropped DLL 1 IoCs

pid	Process
4832	58faf4c2eff5d2a3409caeff1bb077f55a60e05f64092a4806bd6fa7dbf672e0.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	ins5.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	ins5.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	ins5.exe
File created	C:\Windows\assembly\Desktop.ini	ins5.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	ins5.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
5060	4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5060	4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5060	4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe
5060	4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4832 wrote to memory of 2168	4832	58faf4c2eff5d2a3409caeff1bb077f55a60e05f64092a4806bd6fa7dbf672e0.exe	81
PID 4832 wrote to memory of 2168	4832	58faf4c2eff5d2a3409caeff1bb077f55a60e05f64092a4806bd6fa7dbf672e0.exe	81
PID 4832 wrote to memory of 2168	4832	58faf4c2eff5d2a3409caeff1bb077f55a60e05f64092a4806bd6fa7dbf672e0.exe	81
PID 2168 wrote to memory of 5060	2168	ins5.exe	83
PID 2168 wrote to memory of 5060	2168	ins5.exe	83
PID 2168 wrote to memory of 5060	2168	ins5.exe	83

C:\Users\Admin\AppData\Local\Temp\58faf4c2eff5d2a3409caeff1bb077f55a60e05f64092a4806bd6fa7dbf672e0.exe
"C:\Users\Admin\AppData\Local\Temp\58faf4c2eff5d2a3409caeff1bb077f55a60e05f64092a4806bd6fa7dbf672e0.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4832
- C:\Users\Admin\AppData\Local\Temp\nszAC83.tmp\ins5.exe
  C:\Users\Admin\AppData\Local\Temp\nszAC83.tmp\ins5.exe 4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe /t /dT132021756S /e5823030 /u4fe0cf9f-1fe4-4abb-905a-57915bc06f2f
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Drops desktop.ini file(s)
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:2168
- - C:\Users\Admin\AppData\Local\Temp\nszAC83.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe
    "C:\Users\Admin\AppData\Local\Temp\nszAC83.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe" /t /dT132021756S /e5823030 /u4fe0cf9f-1fe4-4abb-905a-57915bc06f2f
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:5060

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

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\Temp\nszAC83.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe

Filesize
250KB

MD5
035e4f28801f8a2f5c9a51750b1d8bc0

SHA1
6083a072e75b146941dc759796e1b539fd4846db

SHA256
46dd0dcd46ed04a5819e21810339dc160a28c6d77a12661549d4a6875c4312be

SHA512
b5f0b19672c425d5025411bb0bfb9f604723bf11ba0a04b202330d2675655e1b7cb31bd51314d77f000edb668307fcf9661e20d12238e2095961cb0b1277d945

Download Submit
C:\Users\Admin\AppData\Local\Temp\nszAC83.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe

Filesize
250KB

MD5
035e4f28801f8a2f5c9a51750b1d8bc0

SHA1
6083a072e75b146941dc759796e1b539fd4846db

SHA256
46dd0dcd46ed04a5819e21810339dc160a28c6d77a12661549d4a6875c4312be

SHA512
b5f0b19672c425d5025411bb0bfb9f604723bf11ba0a04b202330d2675655e1b7cb31bd51314d77f000edb668307fcf9661e20d12238e2095961cb0b1277d945

Download Submit
C:\Users\Admin\AppData\Local\Temp\nszAC83.tmp\ins5.exe

Filesize
214KB

MD5
081f1ef743489a25c99fdd25f6d4f70d

SHA1
dfdbd1caf714644f6c1b1b383f717028c39a2db0

SHA256
ed6b25ef9345aa31303cdc1cad322b1607eda3bf7bfefe7445105baddd59c635

SHA512
bf2962affa9ffb92cbaa17389a71b6ecf548cf6629237444a4b078bdcbd29cdd825055e2fe49530053c864bb1ad42726c083bb7db6d20b0afc939363365ec4ca

Download Submit
C:\Users\Admin\AppData\Local\Temp\nszAC83.tmp\ins5.exe

Filesize
214KB

MD5
081f1ef743489a25c99fdd25f6d4f70d

SHA1
dfdbd1caf714644f6c1b1b383f717028c39a2db0

SHA256
ed6b25ef9345aa31303cdc1cad322b1607eda3bf7bfefe7445105baddd59c635

SHA512
bf2962affa9ffb92cbaa17389a71b6ecf548cf6629237444a4b078bdcbd29cdd825055e2fe49530053c864bb1ad42726c083bb7db6d20b0afc939363365ec4ca

Download Submit
C:\Users\Admin\AppData\Local\Temp\nszAC83.tmp\nsExec.dll

Filesize
8KB

MD5
249ae678f0dac4c625c6de6aca53823a

SHA1
6ac2b9e90e8445fed4c45c5dbf2d0227cd3b5201

SHA256
7298024a36310b7c4c112be87b61b62a0b1be493e2d5252a19e5e976daf674ce

SHA512
66e4081a40f3191bf28b810cf8411cb3c8c3e3ec5943e18d6672414fb5e7b4364f862cba44c9115c599ac90890ef02a773e254e7c979e930946bc52b0693aad7

Download Submit
memory/2168-139-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/2168-145-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/5060-143-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download
memory/5060-144-0x0000000074890000-0x0000000074E41000-memory.dmp

Filesize
5.7MB

Download

Analysis

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