2c3e1f7c57137766a4470c291cc40d741a816b98a4f24a1df157dba7cf1f766b

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-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

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2532 asih.exe
Loads dropped DLL 1 IoCs

Processes:

202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe

pid process

2212 202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe

pid	process
2532	asih.exe

pid	process
2212	202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2212-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
\Users\Admin\AppData\Local\Temp\asih.exe	upx
behavioral1/memory/2212-13-0x00000000006A0000-0x00000000006B0000-memory.dmp	upx
behavioral1/memory/2212-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2532-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2532-28-0x0000000000500000-0x0000000000510000-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 4 IoCs

Processes:

202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe

description	pid	process	target process
PID 2212 wrote to memory of 2532	2212	202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe	asih.exe
PID 2212 wrote to memory of 2532	2212	202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe	asih.exe
PID 2212 wrote to memory of 2532	2212	202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe	asih.exe
PID 2212 wrote to memory of 2532	2212	202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\202405211d804140b7b708bfa962b5faefd45e4bcryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2212
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2532

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
40KB

MD5
e8a30551e07e1418a5bc886ef24e2e73

SHA1
67fb4ee2219cd7f3c84824b75369dd8fa90f1b1b

SHA256
f668228994fb48b44c84b64f4f64d35c71c3a3dbb18abf68af4188ba2847af1d

SHA512
e3fa1d79d4b33917bd570f53b874af199481cfe9d6c799064455319be8e4c9f39a466d3d795acb3ae42960017cc0683cbda9cb27b62602abf8114d2753b6fafa

Download Submit
memory/2212-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2212-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2212-2-0x0000000000210000-0x0000000000216000-memory.dmp

Filesize
24KB

Download
memory/2212-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2212-13-0x00000000006A0000-0x00000000006B0000-memory.dmp

Filesize
64KB

Download
memory/2212-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2532-20-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2532-27-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2532-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2532-28-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download