65739ac1088e29f121425be2e6dc6692ea6f2c05162e649415ba8e9130c0a5cb

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
26/05/2024, 03:24

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General

Target

2024-05-26_0d1d2f926be4deaf267d9305a753c68a_cryptolocker.exe
Size

43KB
MD5

0d1d2f926be4deaf267d9305a753c68a
SHA1

217cfc70a3fbf485c2d953f194b37361b403d145
SHA256

65739ac1088e29f121425be2e6dc6692ea6f2c05162e649415ba8e9130c0a5cb
SHA512

0d990161abcbcc7c99d2ed059622ad96e991118b248d3886549423c4918628842aba37f57e01aba1ddeaffa66cd34d251486b7c664361d6cd321e6c21e45bf7d
SSDEEP

384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jo0nrlwfjDUIz:bm74zYcgT/Ekn0ryfj/

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2176-0-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0010000000012272-11.dat	CryptoLocker_rule2
behavioral1/memory/2956-16-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2176-15-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2956-26-0x0000000008000000-0x000000000800D000-memory.dmp	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2956	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2176	2024-05-26_0d1d2f926be4deaf267d9305a753c68a_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 2176 wrote to memory of 2956	2176	2024-05-26_0d1d2f926be4deaf267d9305a753c68a_cryptolocker.exe	28
PID 2176 wrote to memory of 2956	2176	2024-05-26_0d1d2f926be4deaf267d9305a753c68a_cryptolocker.exe	28
PID 2176 wrote to memory of 2956	2176	2024-05-26_0d1d2f926be4deaf267d9305a753c68a_cryptolocker.exe	28
PID 2176 wrote to memory of 2956	2176	2024-05-26_0d1d2f926be4deaf267d9305a753c68a_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-26_0d1d2f926be4deaf267d9305a753c68a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_0d1d2f926be4deaf267d9305a753c68a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2956

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\hasfj.exe

Filesize
43KB

MD5
d88f42ef99059e3f7a64c143b5dfe6f6

SHA1
334389c9c8249b6b38f30255fabeb7c1717f6aba

SHA256
665d7800318074135cf37dde5a73b01a45af47e20bc985427aa8bb73c16d04d9

SHA512
58eb06c585fd50592de82373979d3f6d2c92626f06bfcce1ab644e92062211b1251561fcf5264580a83b4a3b9c538343c0a0a3b9684ec2675921d34f55b8b87d

Download Submit
memory/2176-0-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2176-2-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download
memory/2176-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2176-9-0x00000000002D0000-0x00000000002D6000-memory.dmp

Filesize
24KB

Download
memory/2176-15-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2956-16-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download
memory/2956-18-0x0000000000570000-0x0000000000576000-memory.dmp

Filesize
24KB

Download
memory/2956-25-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2956-26-0x0000000008000000-0x000000000800D000-memory.dmp

Filesize
52KB

Download