ecf14ffceb6140d4be7e16f0a5f622bd18177a285a44fa0d8e35aad56c63767e

General

Target

ecf14ffceb6140d4be7e16f0a5f622bd18177a285a44fa0d8e35aad56c63767e.exe
Size

993KB
MD5

7d42677fc239c680072d15890a8c5410
SHA1

3f35ba4c1dc548cd34c95e136cbfe0b8cfada3e8
SHA256

ecf14ffceb6140d4be7e16f0a5f622bd18177a285a44fa0d8e35aad56c63767e
SHA512

3d2d0858fa329eb59c9e8f99627e1a37f1b59c5a75a901cceae88b002d3f0d2c259843141c07929667ed2c257d122857dac28fb78e25e02ed178bee8e573cc31
SSDEEP

24576:enyoo5DoPjLc4v0O9UBpBApdhnTQ08FahVGnB8H:envj0QXdhnTQ08FainU

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1504	keygen.exe
3936	c.exe

UPX packed file 8 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x0004000000022e27-134.dat	upx
behavioral2/files/0x0004000000022e27-133.dat	upx
behavioral2/memory/1504-136-0x0000000000F10000-0x0000000000F28000-memory.dmp	upx
behavioral2/files/0x0002000000022e30-138.dat	upx
behavioral2/files/0x0002000000022e30-137.dat	upx
behavioral2/memory/3936-141-0x0000000000400000-0x0000000000710000-memory.dmp	upx
behavioral2/memory/3936-144-0x0000000000400000-0x0000000000710000-memory.dmp	upx
behavioral2/memory/1504-145-0x0000000000F10000-0x0000000000F28000-memory.dmp	upx

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	ecf14ffceb6140d4be7e16f0a5f622bd18177a285a44fa0d8e35aad56c63767e.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
3260	3936	WerFault.exe	84

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3936	c.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 1504	4996	ecf14ffceb6140d4be7e16f0a5f622bd18177a285a44fa0d8e35aad56c63767e.exe	83
PID 4996 wrote to memory of 1504	4996	ecf14ffceb6140d4be7e16f0a5f622bd18177a285a44fa0d8e35aad56c63767e.exe	83
PID 4996 wrote to memory of 1504	4996	ecf14ffceb6140d4be7e16f0a5f622bd18177a285a44fa0d8e35aad56c63767e.exe	83
PID 4996 wrote to memory of 3936	4996	ecf14ffceb6140d4be7e16f0a5f622bd18177a285a44fa0d8e35aad56c63767e.exe	84
PID 4996 wrote to memory of 3936	4996	ecf14ffceb6140d4be7e16f0a5f622bd18177a285a44fa0d8e35aad56c63767e.exe	84
PID 4996 wrote to memory of 3936	4996	ecf14ffceb6140d4be7e16f0a5f622bd18177a285a44fa0d8e35aad56c63767e.exe	84

C:\Users\Admin\AppData\Local\Temp\ecf14ffceb6140d4be7e16f0a5f622bd18177a285a44fa0d8e35aad56c63767e.exe
"C:\Users\Admin\AppData\Local\Temp\ecf14ffceb6140d4be7e16f0a5f622bd18177a285a44fa0d8e35aad56c63767e.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Users\Admin\AppData\Local\Temp\keygen.exe
  "C:\Users\Admin\AppData\Local\Temp\keygen.exe"
  2⤵
  - Executes dropped EXE
  PID:1504
- C:\Users\Admin\AppData\Local\Temp\c.exe
  "C:\Users\Admin\AppData\Local\Temp\c.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:3936
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3936 -s 464
    3⤵
    - Program crash
    PID:3260

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3936 -ip 3936
1⤵
PID:2184

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\c.exe

Filesize
941KB

MD5
732a902d8e4c99ec011e54568bff180e

SHA1
0650d5bec1c983c1fdfa302ef39fe7bd95ca46c8

SHA256
867b485a107f98d9beb1100921716321c575c1aeffb673aa3af56f28e873fbec

SHA512
f9ebb40e915c4a950afce59830a6f81df0266c7333ae7b250af595d1b5612ba0f55806998892507c290391481580f2f7ce7df85f37344848ff527060a542d85d

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

Filesize
941KB

MD5
732a902d8e4c99ec011e54568bff180e

SHA1
0650d5bec1c983c1fdfa302ef39fe7bd95ca46c8

SHA256
867b485a107f98d9beb1100921716321c575c1aeffb673aa3af56f28e873fbec

SHA512
f9ebb40e915c4a950afce59830a6f81df0266c7333ae7b250af595d1b5612ba0f55806998892507c290391481580f2f7ce7df85f37344848ff527060a542d85d

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

Filesize
42KB

MD5
18a24fcdcd61db7931c2dbd133022e4a

SHA1
7113229040e1a7405c5165c72753ac295c9f0cba

SHA256
4e0bb0b5faa17f86524919b323f178b64ac52dc1a852f76f6a8c4f8cc8ea2916

SHA512
68166e62d9da3cd082e49a44ddda82c2b6f6adeabfa385519bf4a1dd558c7d566df672650b066b7741e5d256b633ddd9f3be0cc35c9157064520ab94891bfc90

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

Filesize
42KB

MD5
18a24fcdcd61db7931c2dbd133022e4a

SHA1
7113229040e1a7405c5165c72753ac295c9f0cba

SHA256
4e0bb0b5faa17f86524919b323f178b64ac52dc1a852f76f6a8c4f8cc8ea2916

SHA512
68166e62d9da3cd082e49a44ddda82c2b6f6adeabfa385519bf4a1dd558c7d566df672650b066b7741e5d256b633ddd9f3be0cc35c9157064520ab94891bfc90

Download Submit
memory/1504-136-0x0000000000F10000-0x0000000000F28000-memory.dmp

Filesize
96KB

Download
memory/1504-145-0x0000000000F10000-0x0000000000F28000-memory.dmp

Filesize
96KB

Download
memory/3936-141-0x0000000000400000-0x0000000000710000-memory.dmp

Filesize
3.1MB

Download
memory/3936-142-0x0000000000946000-0x0000000000948000-memory.dmp

Filesize
8KB

Download
memory/3936-143-0x0000000000946000-0x0000000000948000-memory.dmp

Filesize
8KB

Download
memory/3936-144-0x0000000000400000-0x0000000000710000-memory.dmp

Filesize
3.1MB

Download

Analysis

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