ba004a837e42c73abebf0cd5093230150aa8118e2cdcce994463cfc553775aa5

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22-05-2024 02:52

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General

Target

2024-05-22_e6f19baa38ce28850f85c22994459045_cryptolocker.exe
Size

49KB
MD5

e6f19baa38ce28850f85c22994459045
SHA1

55f2dfe8a3d630d08793204e70127cf24778be09
SHA256

ba004a837e42c73abebf0cd5093230150aa8118e2cdcce994463cfc553775aa5
SHA512

c69dc45dfb152183c744856531b453022069cbb803bb7e7196acd0ea8f4074727cd127720d0de07f75d54daa4995a96e68425a90d4d0516422e6e6fb20641ccf
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vdXfe:X6QFElP6n+gJBMOtEvwDpjBtEdXfe

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000155e2-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000155e2-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2584	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1500	2024-05-22_e6f19baa38ce28850f85c22994459045_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 1500 wrote to memory of 2584	1500	2024-05-22_e6f19baa38ce28850f85c22994459045_cryptolocker.exe	28
PID 1500 wrote to memory of 2584	1500	2024-05-22_e6f19baa38ce28850f85c22994459045_cryptolocker.exe	28
PID 1500 wrote to memory of 2584	1500	2024-05-22_e6f19baa38ce28850f85c22994459045_cryptolocker.exe	28
PID 1500 wrote to memory of 2584	1500	2024-05-22_e6f19baa38ce28850f85c22994459045_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-22_e6f19baa38ce28850f85c22994459045_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-22_e6f19baa38ce28850f85c22994459045_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1500
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2584

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
39d3d636e3ae7ba7503b47d16591aefc

SHA1
476c98ef24d2b793fe905ea727e3258277df7136

SHA256
b10f42ed678ebb98b9f9f4c5b436d6dfd08dccad3a6be7cdce0a7d9e75364aa8

SHA512
fc5388497217cd46afa18aa9164a89cfd4c43a21f10a53f2359c3dac8aa1b577b19bb00fa32c29c6ac38805a4c42f773e22fdc9b822db423fdce512dd8c058f0

Download Submit
memory/1500-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1500-1-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/1500-8-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2584-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2584-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download