1ccd0e039bb5258189c63610173944ef3d1e66f13a84fd54b770888a5298cb4d

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
04/02/2024, 05:43

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General

Target

2024-02-04_972678c41b4592cbb9952202acbf9dd7_cryptolocker.exe
Size

37KB
MD5

972678c41b4592cbb9952202acbf9dd7
SHA1

105f29f2a42e056868f80c6587edeb8f9b5c92f4
SHA256

1ccd0e039bb5258189c63610173944ef3d1e66f13a84fd54b770888a5298cb4d
SHA512

309564d3752471283082c679a13c4469b2c72028584e1a9a00d73ca7d409271cd94f7533778d1ba7eb6135b4c3163e46521bce7b845f0742d894aedd99587c79
SSDEEP

768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEgx3OB:bxNrC7kYo1Fxf3s06gYB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012243-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2776	pissa.exe

Loads dropped DLL 1 IoCs

pid	Process
2288	2024-02-04_972678c41b4592cbb9952202acbf9dd7_cryptolocker.exe

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

description	pid	Process	procid_target
PID 2288 wrote to memory of 2776	2288	2024-02-04_972678c41b4592cbb9952202acbf9dd7_cryptolocker.exe	28
PID 2288 wrote to memory of 2776	2288	2024-02-04_972678c41b4592cbb9952202acbf9dd7_cryptolocker.exe	28
PID 2288 wrote to memory of 2776	2288	2024-02-04_972678c41b4592cbb9952202acbf9dd7_cryptolocker.exe	28
PID 2288 wrote to memory of 2776	2288	2024-02-04_972678c41b4592cbb9952202acbf9dd7_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-04_972678c41b4592cbb9952202acbf9dd7_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-04_972678c41b4592cbb9952202acbf9dd7_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2288
- C:\Users\Admin\AppData\Local\Temp\pissa.exe
  "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
  2⤵
  - Executes dropped EXE
  PID:2776

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\pissa.exe

Filesize
37KB

MD5
aea23db9dea6f7f7771610d7ff66c42b

SHA1
3ca8309cf02a3d39f33de31d0100b89019dcb2d4

SHA256
39089491be3838886566fe4bb6cafca5e92152a8435fe0f6e98b96acc0e716a8

SHA512
bbd3347d6dd8db0c3ddf1bcdae719e245e0084d2aa5080e14886df23f3a24da2bad3ae3182160422c728ae3b4cc25c3681256f45ca16e068e79445b1a0d92d6d

Download Submit
memory/2288-0-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2288-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2288-6-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2776-15-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download
memory/2776-22-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download