fe520111b6912f01b6896c8bb89c3dd40524eb8036b2e461055bb3dee5133293

Analysis

max time kernel
150s
max time network
142s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28/02/2024, 11:45

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General

Target

2024-02-28_3e16f1290cd6d1c2b1de215c0151856c_cryptolocker.exe
Size

38KB
MD5

3e16f1290cd6d1c2b1de215c0151856c
SHA1

988bb7492084f68c07ffc399bf10ccfbac6ef82f
SHA256

fe520111b6912f01b6896c8bb89c3dd40524eb8036b2e461055bb3dee5133293
SHA512

80b5fda64458b5392f80ffbcef65460e8f32edfd4e6ab676269c2d856be03ba6e83746d2f7136876f55873deb31470da707583451ef5ab844e58737a3c823c72
SSDEEP

768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5axo:V6QFElP6n+gMQMOtEvwDpjyaYaa

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012256-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012256-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
1796	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2512	2024-02-28_3e16f1290cd6d1c2b1de215c0151856c_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 2512 wrote to memory of 1796	2512	2024-02-28_3e16f1290cd6d1c2b1de215c0151856c_cryptolocker.exe	28
PID 2512 wrote to memory of 1796	2512	2024-02-28_3e16f1290cd6d1c2b1de215c0151856c_cryptolocker.exe	28
PID 2512 wrote to memory of 1796	2512	2024-02-28_3e16f1290cd6d1c2b1de215c0151856c_cryptolocker.exe	28
PID 2512 wrote to memory of 1796	2512	2024-02-28_3e16f1290cd6d1c2b1de215c0151856c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-28_3e16f1290cd6d1c2b1de215c0151856c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-28_3e16f1290cd6d1c2b1de215c0151856c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:1796

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
38KB

MD5
c926f3083dd2327a7d71f2dab980dd69

SHA1
b57ca20ebd8da9cf4e03c020d41277e7cac36eef

SHA256
96ee0d7ca08de3bf81baf3fdb45f91a614fc5605b715926053951271e03c9257

SHA512
2d7f973e5b67892e4fc617491969e0592ca699185fcda35fb50bd350d9dc0bca1302bb3777b3951130ca751ede49a24825e681a422dd06030dd72bed35197f8f

Download Submit
memory/1796-15-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/1796-22-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2512-0-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2512-2-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/2512-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download