b7800bad893ef2424db29430e238c27d56c2071ec0abc027da457a77ab2bf076

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/03/2024, 22:46

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General

Target

2024-03-10_58fbd8a0c3eb16d7b3011bab72b5aeb6_cryptolocker.exe
Size

51KB
MD5

58fbd8a0c3eb16d7b3011bab72b5aeb6
SHA1

db840083d3f3dfdc44bcaa8e82a6f8db62f380aa
SHA256

b7800bad893ef2424db29430e238c27d56c2071ec0abc027da457a77ab2bf076
SHA512

95a7521c8e4ef4a036a8e070ca80edff1aa61313b48e01c5df0f7daed7a7a6c6f9afa689f386d8bbfcc08cf3d5591b6f1ed32cfc0d6e1a00af44211f8fe34d0e
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxmlcafR:X6QFElP6n+gJBMOtEvwDpjBtExmlnR

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001223a-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000b00000001223a-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2196	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1876	2024-03-10_58fbd8a0c3eb16d7b3011bab72b5aeb6_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 1876 wrote to memory of 2196	1876	2024-03-10_58fbd8a0c3eb16d7b3011bab72b5aeb6_cryptolocker.exe	28
PID 1876 wrote to memory of 2196	1876	2024-03-10_58fbd8a0c3eb16d7b3011bab72b5aeb6_cryptolocker.exe	28
PID 1876 wrote to memory of 2196	1876	2024-03-10_58fbd8a0c3eb16d7b3011bab72b5aeb6_cryptolocker.exe	28
PID 1876 wrote to memory of 2196	1876	2024-03-10_58fbd8a0c3eb16d7b3011bab72b5aeb6_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-10_58fbd8a0c3eb16d7b3011bab72b5aeb6_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_58fbd8a0c3eb16d7b3011bab72b5aeb6_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2196

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
51KB

MD5
943c73b8538ad1d0b8d3e84b0761729f

SHA1
46e671337c1ee5fbb9a0d0226cb9d6eb22d54664

SHA256
7c5c231cb2f8d3fe2e49364e73a3337e14e9672f531d96f12a243d3dc0af3058

SHA512
36c11011f931b158b843c5fbe874c88a8eeaf5bfe308eb1b95458ff81445d9b69721f198a2c291be11aa108206a66f8670d87b575e74710dc12bea5e0f286824

Download Submit
memory/1876-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/1876-1-0x0000000000600000-0x0000000000606000-memory.dmp

Filesize
24KB

Download
memory/1876-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2196-15-0x0000000000460000-0x0000000000466000-memory.dmp

Filesize
24KB

Download
memory/2196-16-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download