e55b5bf9ba9e91258cfe7cc151ef05e54b1d9ca226775b3b2efe2f78811ab074

Analysis

max time kernel
136s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/03/2024, 14:26

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

2024-03-09_2387be97168641dd2b26bd746809fd7b_cryptolocker.exe
Size

95KB
MD5

2387be97168641dd2b26bd746809fd7b
SHA1

20482b107e3d989b850cdb3de7151c6cd2d7d824
SHA256

e55b5bf9ba9e91258cfe7cc151ef05e54b1d9ca226775b3b2efe2f78811ab074
SHA512

d6974b3fd5c3019a38c6df81a04c373c6042bde4a316e85a37481c553b69a3b230eb848f2e30eb00c979b573693bd6cab38ecbf76ed152e5bdeae2371734d188
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgp0J:V6a+pOtEvwDpjtzh

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

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

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000a000000012254-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1388	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3060	2024-03-09_2387be97168641dd2b26bd746809fd7b_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 3060 wrote to memory of 1388	3060	2024-03-09_2387be97168641dd2b26bd746809fd7b_cryptolocker.exe	28
PID 3060 wrote to memory of 1388	3060	2024-03-09_2387be97168641dd2b26bd746809fd7b_cryptolocker.exe	28
PID 3060 wrote to memory of 1388	3060	2024-03-09_2387be97168641dd2b26bd746809fd7b_cryptolocker.exe	28
PID 3060 wrote to memory of 1388	3060	2024-03-09_2387be97168641dd2b26bd746809fd7b_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-09_2387be97168641dd2b26bd746809fd7b_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-09_2387be97168641dd2b26bd746809fd7b_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3060
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1388

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
96KB

MD5
e1a505bb5956e9e812b21b3152afb83b

SHA1
44cb4365786d870daf873d1089f44032854197de

SHA256
3ef23fa4600bdf673afd07f4e17397f481b7473168dd389190388eb535c58df0

SHA512
29bb0ac4b8ebd1a294577d991a1d1c94061a3324becbb39794c4d02a1cd78d8bddf3e85adbfd9b48545a1f17fcb97b95f858c6e041d3a1ab2ea8027e326d8677

Download Submit
memory/1388-15-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/1388-19-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3060-0-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/3060-2-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/3060-1-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download