290d6fd2303d63a5003ea57417de08b4bb2183ee0476adcedb8775b6801e5605

Analysis

max time kernel
146s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2023 19:52

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General

Target

0ef75bb88552494a76537f4924861b19.exe
Size

118KB
MD5

0ef75bb88552494a76537f4924861b19
SHA1

2689c22a965e343aaab021be132ea89924d8f61e
SHA256

290d6fd2303d63a5003ea57417de08b4bb2183ee0476adcedb8775b6801e5605
SHA512

b21052867e99e0dc70bc06fc193ad8c8511c0b42f1a34381ed9f6abb42dcc70e0611ae3f0f109f660547c43dd2ca8336463331be2f616a2fa695b4340a08fde8
SSDEEP

3072:Ln2xwJQ7c8S7Y8drUAxA79WUUZs1BQkVOYy6CrU688RS:LSI8AY6rUIA79UzX64VS

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-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	0ef75bb88552494a76537f4924861b19.exe

Executes dropped EXE 1 IoCs

pid	Process
740	tt.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\tt.exe	0ef75bb88552494a76537f4924861b19.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process
4076	740	WerFault.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1848	0ef75bb88552494a76537f4924861b19.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 740	1848	0ef75bb88552494a76537f4924861b19.exe	24
PID 1848 wrote to memory of 740	1848	0ef75bb88552494a76537f4924861b19.exe	24
PID 1848 wrote to memory of 740	1848	0ef75bb88552494a76537f4924861b19.exe	24

C:\Users\Admin\AppData\Local\Temp\0ef75bb88552494a76537f4924861b19.exe
"C:\Users\Admin\AppData\Local\Temp\0ef75bb88552494a76537f4924861b19.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1848
- C:\Windows\tt.exe
  "C:\Windows\tt.exe"
  2⤵
  - Executes dropped EXE
  PID:740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 740 -ip 740
1⤵
PID:2540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 740 -s 220
1⤵
- Program crash
PID:4076

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

C:\Windows\tt.exe

Filesize
105KB

MD5
d4db45d6a8b112adb76d31910780f4cf

SHA1
6fa414a99494e2e982303d51c2177c5dbd2123a8

SHA256
ebea770d2bcb5c7abeee35a70a3f62357e920dadef9d09dab098c543b6fe5b9d

SHA512
50899393a6f453cdf9290a180bd8511e7130064f8b79cded14563665db2994559ef5d7b47259dc9cbc523a52eb19751e1d9255d0afcea78f6de850924b7dd2b6

Download Submit
memory/740-9-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1848-0-0x0000000000400000-0x0000000000420200-memory.dmp

Filesize
128KB

Download