a8e0d76455bcb55daa4c63916e8bd873fc31d0e92e9d02efe4f7bb24bfeb787b

Analysis

max time kernel
149s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2022 08:49

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General

Target

a8e0d76455bcb55daa4c63916e8bd873fc31d0e92e9d02efe4f7bb24bfeb787b.exe
Size

105KB
MD5

363a508a3accfa7b86baa012cda15c48
SHA1

508a2862edbe604da270922c3643dd4313226b87
SHA256

a8e0d76455bcb55daa4c63916e8bd873fc31d0e92e9d02efe4f7bb24bfeb787b
SHA512

c114aa36b86ab902cc08a708ad7a0cbfd51a8370ba21f98854b0840d6c90ee384ad9b86dc0c6f6c02465a1d879dcdb4c5ed7291c7bdd027bde4b6a73f0aacffb
SSDEEP

768:H+KGZdJueOxr1PuarJHlVBQavxWOf+u4Dt0XtCVJGCIzIsaJHRQCAxtXfq:HDGEr1PDVBQiWe+b0X0nEIs0RQtXy

Score

8^/10

upx

Malware Config

Signatures

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4644-132-0x0000000000400000-0x000000000047D000-memory.dmp	upx
behavioral2/memory/4644-133-0x0000000000400000-0x000000000047D000-memory.dmp	upx
behavioral2/memory/4644-135-0x0000000000400000-0x000000000047D000-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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	a8e0d76455bcb55daa4c63916e8bd873fc31d0e92e9d02efe4f7bb24bfeb787b.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 2 IoCs

pid	Process
4644	a8e0d76455bcb55daa4c63916e8bd873fc31d0e92e9d02efe4f7bb24bfeb787b.exe
4644	a8e0d76455bcb55daa4c63916e8bd873fc31d0e92e9d02efe4f7bb24bfeb787b.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4644 wrote to memory of 1048	4644	a8e0d76455bcb55daa4c63916e8bd873fc31d0e92e9d02efe4f7bb24bfeb787b.exe	80
PID 4644 wrote to memory of 1048	4644	a8e0d76455bcb55daa4c63916e8bd873fc31d0e92e9d02efe4f7bb24bfeb787b.exe	80
PID 4644 wrote to memory of 1048	4644	a8e0d76455bcb55daa4c63916e8bd873fc31d0e92e9d02efe4f7bb24bfeb787b.exe	80

C:\Users\Admin\AppData\Local\Temp\a8e0d76455bcb55daa4c63916e8bd873fc31d0e92e9d02efe4f7bb24bfeb787b.exe
"C:\Users\Admin\AppData\Local\Temp\a8e0d76455bcb55daa4c63916e8bd873fc31d0e92e9d02efe4f7bb24bfeb787b.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4644
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /q /c "C:\Users\Admin\AppData\Local\Temp\a..bat" > nul 2> nul
  2⤵
  PID:1048

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

C:\Users\Admin\AppData\Local\Temp\a..bat

Filesize
274B

MD5
3ad24221239e4c4400e8df5d13dde6cc

SHA1
b95abfc7ddc02e8c374f7f4a2c2597a58bc77abb

SHA256
2aad5e9330ffd53f4e28c5a983d2ea9164700db479047fd5ceaa12430afccde2

SHA512
e629e7378b1068eabadd03eebd1e9314fd3158618242ef55d7691eeba8b5719c12236e3a932ef3bd2ab8d16ee76c8b06bb2b45d452c4d62b7191db6d0d95438a

Download Submit
memory/1048-134-0x0000000000000000-mapping.dmp

Download
memory/4644-132-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download
memory/4644-133-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download
memory/4644-135-0x0000000000400000-0x000000000047D000-memory.dmp

Filesize
500KB

Download