ab439898a5bc6cbcf5c5e7d9619cf2d9e345f5021e55cddd7343454819acb599

Analysis

max time kernel
178s
max time network
187s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
07/11/2022, 11:30

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General

Target

ab439898a5bc6cbcf5c5e7d9619cf2d9e345f5021e55cddd7343454819acb599.exe
Size

292KB
MD5

8edb7ec89a25df0f6365508975b0adba
SHA1

43ef8c324e5e45f1ac847460be4bdb2330cfae4e
SHA256

ab439898a5bc6cbcf5c5e7d9619cf2d9e345f5021e55cddd7343454819acb599
SHA512

e6fcab2e244f7d28251b51dc49e7d54f2ece3b6b58cf990fbfa79bc1cf6d617f91fc6e9c3dabc31becaf45d05898d1780db17111ceec581980dda5aafa13289a
SSDEEP

6144:7anPst8v78IwA7I97x4fg+8t9d5Z0DRUIH0xsNJEg:7oPstEPwA7I9750Nz0ONJEg

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3940	s1934.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	ab439898a5bc6cbcf5c5e7d9619cf2d9e345f5021e55cddd7343454819acb599.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	s1934.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s1934.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	s1934.exe
File created	C:\Windows\assembly\Desktop.ini	s1934.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s1934.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1424	1264	WerFault.exe	77

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1264	ab439898a5bc6cbcf5c5e7d9619cf2d9e345f5021e55cddd7343454819acb599.exe
1264	ab439898a5bc6cbcf5c5e7d9619cf2d9e345f5021e55cddd7343454819acb599.exe
3940	s1934.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3940	s1934.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3940	s1934.exe
3940	s1934.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 1264 wrote to memory of 3940	1264	ab439898a5bc6cbcf5c5e7d9619cf2d9e345f5021e55cddd7343454819acb599.exe	80
PID 1264 wrote to memory of 3940	1264	ab439898a5bc6cbcf5c5e7d9619cf2d9e345f5021e55cddd7343454819acb599.exe	80

C:\Users\Admin\AppData\Local\Temp\ab439898a5bc6cbcf5c5e7d9619cf2d9e345f5021e55cddd7343454819acb599.exe
"C:\Users\Admin\AppData\Local\Temp\ab439898a5bc6cbcf5c5e7d9619cf2d9e345f5021e55cddd7343454819acb599.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1264
- C:\Users\Admin\AppData\Local\Temp\n1934\s1934.exe
  "C:\Users\Admin\AppData\Local\Temp\n1934\s1934.exe" ins.exe /t530dbf16d76b1 /e12236294 /u17dced38-7f70-11e3-8a58-80c16e6f498c
  2⤵
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3940
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1264 -s 4352
  2⤵
  - Program crash
  PID:1424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 1264 -ip 1264
1⤵
PID:2404

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\n1934\s1934.exe

Filesize
269KB

MD5
5bedbca9b50f0374b405eb0c79ec0195

SHA1
1a0646caa442f30d86f5ba79c35de34a4ab235fe

SHA256
0355e5e23f4f5d2c129c6d5aa680c782898b332a38c02a0b7ef4d0f50b0ea64d

SHA512
007fd12814a7a7e8d4182d69a86a2f06350521aa9daf684e2516bf7f22add1f687940a06430b5169f38e41c99ae8cbcc8d1f7c3218c68a127a8c6fe68c36ee6b

Download Submit
C:\Users\Admin\AppData\Local\Temp\n1934\s1934.exe

Filesize
269KB

MD5
5bedbca9b50f0374b405eb0c79ec0195

SHA1
1a0646caa442f30d86f5ba79c35de34a4ab235fe

SHA256
0355e5e23f4f5d2c129c6d5aa680c782898b332a38c02a0b7ef4d0f50b0ea64d

SHA512
007fd12814a7a7e8d4182d69a86a2f06350521aa9daf684e2516bf7f22add1f687940a06430b5169f38e41c99ae8cbcc8d1f7c3218c68a127a8c6fe68c36ee6b

Download Submit
memory/3940-135-0x00007FFEE7520000-0x00007FFEE7F56000-memory.dmp

Filesize
10.2MB

Download
memory/3940-136-0x000000000172A000-0x000000000172F000-memory.dmp

Filesize
20KB

Download
memory/3940-137-0x000000000172A000-0x000000000172F000-memory.dmp

Filesize
20KB

Download
memory/3940-138-0x000000000172A000-0x000000000172F000-memory.dmp

Filesize
20KB

Download