a2068c381bcd1b588544799a8e72cdcb7e3c2dc7bd3f3f531a6ce8d9fc7040e4

Analysis

max time kernel
149s
max time network
154s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
29/01/2024, 16:05

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General

Target

2024-01-29_dcb20518dc2b4c3e9ad260c77d9d0308_cryptolocker.exe
Size

44KB
MD5

dcb20518dc2b4c3e9ad260c77d9d0308
SHA1

faf31b5db444a5b2519c7464f3dd37cbbdd086e8
SHA256

a2068c381bcd1b588544799a8e72cdcb7e3c2dc7bd3f3f531a6ce8d9fc7040e4
SHA512

478a3aaefd6cf910083d368b1f0d796f46612d482fa696fc2043f5e5f9126a21556e017290960a4b338a8789bce83a4a1eb9025fddc6cc2b47cba6e453e6d2a0
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YlPvn:bgGYcA/53GAA6y37QX

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012248-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2700	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2876	2024-01-29_dcb20518dc2b4c3e9ad260c77d9d0308_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 2876 wrote to memory of 2700	2876	2024-01-29_dcb20518dc2b4c3e9ad260c77d9d0308_cryptolocker.exe	28
PID 2876 wrote to memory of 2700	2876	2024-01-29_dcb20518dc2b4c3e9ad260c77d9d0308_cryptolocker.exe	28
PID 2876 wrote to memory of 2700	2876	2024-01-29_dcb20518dc2b4c3e9ad260c77d9d0308_cryptolocker.exe	28
PID 2876 wrote to memory of 2700	2876	2024-01-29_dcb20518dc2b4c3e9ad260c77d9d0308_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-29_dcb20518dc2b4c3e9ad260c77d9d0308_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_dcb20518dc2b4c3e9ad260c77d9d0308_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2876
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2700

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
44KB

MD5
1274db7164562bfcee4139dc1fafe6fe

SHA1
6df064933f1147c1349d3c7453dcfced6511f746

SHA256
7fcf92d6883885f7998def3d359b0bc2ed242453f0103ee849246cb3c893657f

SHA512
8cc235b640c8fde056aca24a68cfc424213e5262d787b4339823afe9f75aa91a0b8cad44cda039f3ea801e89ecc761f9bfd0771e0b8a617a14aeaf92126bcca1

Download Submit
memory/2700-15-0x0000000001C20000-0x0000000001C26000-memory.dmp

Filesize
24KB

Download
memory/2700-16-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2876-0-0x0000000001CC0000-0x0000000001CC6000-memory.dmp

Filesize
24KB

Download
memory/2876-1-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2876-2-0x0000000001CC0000-0x0000000001CC6000-memory.dmp

Filesize
24KB

Download