2c3e1f7c57137766a4470c291cc40d741a816b98a4f24a1df157dba7cf1f766b

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 19:24

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General

Target

202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe
Size

39KB
MD5

1d804140b7b708bfa962b5faefd45e4b
SHA1

ddcdca5de6459cd59e65d3d3383180aeca84f25f
SHA256

2c3e1f7c57137766a4470c291cc40d741a816b98a4f24a1df157dba7cf1f766b
SHA512

26972e342344f4a3d5c0beb3f4af966a0d0f4f3b600d122b631b4c02160c9d48bee33b9b99d965fc13fbed99162a2dee411122672eeacb781282896a7ac0f71b
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYlF:qDdFJy3QMOtEvwDpjjWMl7T6F

Score

7^/10

upx

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

Processes:

202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

316 asih.exe

pid	process
316	asih.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4892-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
C:\Users\Admin\AppData\Local\Temp\asih.exe	upx
behavioral2/memory/4892-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/316-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/316-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe

description	pid	process	target process
PID 4892 wrote to memory of 316	4892	202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe	asih.exe
PID 4892 wrote to memory of 316	4892	202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe	asih.exe
PID 4892 wrote to memory of 316	4892	202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4892
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:316

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:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
40KB

MD5
e8a30551e07e1418a5bc886ef24e2e73

SHA1
67fb4ee2219cd7f3c84824b75369dd8fa90f1b1b

SHA256
f668228994fb48b44c84b64f4f64d35c71c3a3dbb18abf68af4188ba2847af1d

SHA512
e3fa1d79d4b33917bd570f53b874af199481cfe9d6c799064455319be8e4c9f39a466d3d795acb3ae42960017cc0683cbda9cb27b62602abf8114d2753b6fafa

Download Submit
memory/316-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/316-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4892-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4892-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4892-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

Filesize
24KB

Download
memory/4892-9-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4892-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download