bc26cb7780b042359ee5c7be39ec89755aae336bd8e95b6c16e789b99721efea

Analysis

max time kernel
148s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
29/01/2024, 04:22

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General

Target

2024-01-29_0050e30340a809715ce3894b8b557cbd_cryptolocker.exe
Size

48KB
MD5

0050e30340a809715ce3894b8b557cbd
SHA1

91b38d9912eb19116458f6ab586280a18646c0d0
SHA256

bc26cb7780b042359ee5c7be39ec89755aae336bd8e95b6c16e789b99721efea
SHA512

ad9c8f008f79b21c423c268a70787571d0fd0b43b70ad3e48b531a6b80595e8439f1f81be55baf9f82f9b8ad9c069482b320889fde53b41ef8233725d6b069a5
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxmlcu:X6QFElP6n+gJBMOtEvwDpjBtExmlz

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012251-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b000000012251-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2764	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2352	2024-01-29_0050e30340a809715ce3894b8b557cbd_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 2352 wrote to memory of 2764	2352	2024-01-29_0050e30340a809715ce3894b8b557cbd_cryptolocker.exe	28
PID 2352 wrote to memory of 2764	2352	2024-01-29_0050e30340a809715ce3894b8b557cbd_cryptolocker.exe	28
PID 2352 wrote to memory of 2764	2352	2024-01-29_0050e30340a809715ce3894b8b557cbd_cryptolocker.exe	28
PID 2352 wrote to memory of 2764	2352	2024-01-29_0050e30340a809715ce3894b8b557cbd_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-29_0050e30340a809715ce3894b8b557cbd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-29_0050e30340a809715ce3894b8b557cbd_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2352
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2764

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\asih.exe

Filesize
49KB

MD5
93c7e2b8174f5728f55059bbdd8ce027

SHA1
bcd497f6b64099b8477e5dcdc87ff729e36c3d90

SHA256
615690a5a818d061f851393fb314737a6ebf0cb1203019330c2673572c19bec2

SHA512
eba55180eb0cae78c8a5e7f930d832b9d4e1311e5e9e5babcb10dc20c2e51a0c2d6920cfa704ff6755516d85c0ef540c4e37ea3841e819686f94c1ddfd840dcc

Download Submit
memory/2352-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2352-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2352-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2764-15-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2764-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download