b046b3814f4653af0d36283f04590649d9444f845cff09b5339e77535299fbb8

Analysis

max time kernel
139s
max time network
157s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
08/03/2024, 22:31

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General

Target

2024-03-08_a61e41f58450658f5edea9067c8dc00d_cryptolocker.exe
Size

96KB
MD5

a61e41f58450658f5edea9067c8dc00d
SHA1

458a6eaa7f336be6406be60f611255866086740a
SHA256

b046b3814f4653af0d36283f04590649d9444f845cff09b5339e77535299fbb8
SHA512

f9a4c229c9ec72bdd617d7d3006edd9dd097f13bc81fdbbacf270fd083e7c0a3cc56bcc1cea0c1ea712398be268e93afed5707477fbb69820c3b975a86c2981a
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjQGYQbN/PKwNgpwwO:V6a+pOtEvwDpjtzj

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012254-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012254-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
3000	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2200	2024-03-08_a61e41f58450658f5edea9067c8dc00d_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 2200 wrote to memory of 3000	2200	2024-03-08_a61e41f58450658f5edea9067c8dc00d_cryptolocker.exe	27
PID 2200 wrote to memory of 3000	2200	2024-03-08_a61e41f58450658f5edea9067c8dc00d_cryptolocker.exe	27
PID 2200 wrote to memory of 3000	2200	2024-03-08_a61e41f58450658f5edea9067c8dc00d_cryptolocker.exe	27
PID 2200 wrote to memory of 3000	2200	2024-03-08_a61e41f58450658f5edea9067c8dc00d_cryptolocker.exe	27

C:\Users\Admin\AppData\Local\Temp\2024-03-08_a61e41f58450658f5edea9067c8dc00d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-08_a61e41f58450658f5edea9067c8dc00d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3000

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
96KB

MD5
0e0633883df1a1d5cf475595b1d800c6

SHA1
8f3d94eb2eaf41e6b86832ffff93cecd4b47af8d

SHA256
7e3c3c3b3208eb8231671e8b03f75882fd8258302c33bbc3c9320014772f17b7

SHA512
741dd08c10d16918585238102896ba4c24a7b7572548692749a5eadde6f556bd8ad0a777ea42850abc23c9557987a0f3ba8ee3cf68f1342602d4137081d2b052

Download Submit
memory/2200-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2200-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2200-7-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/3000-15-0x0000000000520000-0x0000000000526000-memory.dmp

Filesize
24KB

Download