de00d8ceeb248d412b62d5ca531b06589edaa472f50adce193cfb1e01f281b7a

Analysis

max time kernel
147s
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 19:18

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General

Target

2024052137c25a9857c5f1955ff5455caa0dbbb9cryptolocker.exe
Size

39KB
MD5

37c25a9857c5f1955ff5455caa0dbbb9
SHA1

1f12d728d584d882b269c57e7d4a20ce74d2492b
SHA256

de00d8ceeb248d412b62d5ca531b06589edaa472f50adce193cfb1e01f281b7a
SHA512

a524336a1f7b87c1b1fae5e340a9cb313f48b2bdcb6e41264ab89483f6b808ef9d859be0e3578d147be03bb80f46f470f79cbc5010b6c3e997d6a5cf12449f23
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYc:qDdFJy3QMOtEvwDpjjWMl7TZ

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

asih.exe

pid process

2216 asih.exe
Loads dropped DLL 1 IoCs

Processes:

2024052137c25a9857c5f1955ff5455caa0dbbb9cryptolocker.exe

pid process

2172 2024052137c25a9857c5f1955ff5455caa0dbbb9cryptolocker.exe

pid	process
2216	asih.exe

pid	process
2172	2024052137c25a9857c5f1955ff5455caa0dbbb9cryptolocker.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2172-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
\Users\Admin\AppData\Local\Temp\asih.exe	upx
behavioral1/memory/2216-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2172-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2216-27-0x0000000000500000-0x0000000000510000-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:

2024052137c25a9857c5f1955ff5455caa0dbbb9cryptolocker.exe

description	pid	process	target process
PID 2172 wrote to memory of 2216	2172	2024052137c25a9857c5f1955ff5455caa0dbbb9cryptolocker.exe	asih.exe
PID 2172 wrote to memory of 2216	2172	2024052137c25a9857c5f1955ff5455caa0dbbb9cryptolocker.exe	asih.exe
PID 2172 wrote to memory of 2216	2172	2024052137c25a9857c5f1955ff5455caa0dbbb9cryptolocker.exe	asih.exe
PID 2172 wrote to memory of 2216	2172	2024052137c25a9857c5f1955ff5455caa0dbbb9cryptolocker.exe	asih.exe

C:\Users\Admin\AppData\Local\Temp\2024052137c25a9857c5f1955ff5455caa0dbbb9cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024052137c25a9857c5f1955ff5455caa0dbbb9cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2216

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
39KB

MD5
5e2b317ac35707205c7d95f32af90071

SHA1
f102cffa5a982357ebdeb523939b141c5d534125

SHA256
5b735b4ee9eba5dd81173824bda6a93bd9e096fd7a53d30c50d077d26d005b2c

SHA512
34fb27fe73cf66eb94b0f9f953051dab8d2fbe8c2376013112871f3b38f3dab6820b89f0e86e88c408dc2ad8d6e1622e75dad5ac43f330c3a3463585b931c5c2

Download Submit
memory/2172-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2172-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2172-2-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2172-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2172-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2216-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2216-19-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2216-26-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2216-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download