65ffa23bbd141a743074f61582619305e1e0ecd8428290a374f81ead89ff0625

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/03/2024, 00:41

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General

Target

2024-03-28_88ee7dbbbe2f4985b2d2c685c703dd63_cryptolocker.exe
Size

43KB
MD5

88ee7dbbbe2f4985b2d2c685c703dd63
SHA1

ee60c9016837b2b0b5b5acb9fd9b709336e759b3
SHA256

65ffa23bbd141a743074f61582619305e1e0ecd8428290a374f81ead89ff0625
SHA512

9dec74df87c37521683328cf60fbaefc052d43acf98907fb6cb4858e638a2bf361dd07f1ec31a3215329b8dba91dbd87b65398bef24d0d42eac2f337e6ad74b8
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDDw3sCu5b+syQNA1:bgGYcA/53GADw8Cl/n1

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012254-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2936	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1292	2024-03-28_88ee7dbbbe2f4985b2d2c685c703dd63_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 1292 wrote to memory of 2936	1292	2024-03-28_88ee7dbbbe2f4985b2d2c685c703dd63_cryptolocker.exe	28
PID 1292 wrote to memory of 2936	1292	2024-03-28_88ee7dbbbe2f4985b2d2c685c703dd63_cryptolocker.exe	28
PID 1292 wrote to memory of 2936	1292	2024-03-28_88ee7dbbbe2f4985b2d2c685c703dd63_cryptolocker.exe	28
PID 1292 wrote to memory of 2936	1292	2024-03-28_88ee7dbbbe2f4985b2d2c685c703dd63_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-28_88ee7dbbbe2f4985b2d2c685c703dd63_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-28_88ee7dbbbe2f4985b2d2c685c703dd63_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1292
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2936

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
79b80f96510d69113f2a63dfb72aa911

SHA1
50262f7a2c0cba73c5bef42a13f263541ab53af5

SHA256
713e5c9a61aaae6ce6b84b94a02abb37bace5ca19a7363ef608bae55c4131d4e

SHA512
f233c8631af04fb5449fbdd4723df4789337fb8f4e93a631825acc2fb9e4b2876c6b0161e398b593c45efc86d97049da50262145dc04e564acfd6b206717c336

Download Submit
memory/1292-0-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1292-1-0x0000000000330000-0x0000000000336000-memory.dmp

Filesize
24KB

Download
memory/1292-2-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2936-15-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

Filesize
24KB

Download
memory/2936-22-0x0000000001BA0000-0x0000000001BA6000-memory.dmp

Filesize
24KB

Download