74f4b420cd045731d2f4a2aa70a56f7cc5de5de0ba183edef2e0100d50dfb55b

Analysis

max time kernel
150s
max time network
175s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05/03/2024, 19:53

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General

Target

2024-03-05_448171ebc71c340e292c03977cd7e444_cryptolocker.exe
Size

386KB
MD5

448171ebc71c340e292c03977cd7e444
SHA1

deae59e3e4085ef11594fecfd685158b7bd2341d
SHA256

74f4b420cd045731d2f4a2aa70a56f7cc5de5de0ba183edef2e0100d50dfb55b
SHA512

bceb0ff00a365ecad00f4aa184a8ce43a22cd1302eeecced1289c190f5232caaed93c0dcbf2592e461c878bb3958979c189426039e25c45d25dd5b2f543c97ea
SSDEEP

6144:nnOsaQgAOjvrZFODJjBz3j1jTqQy6v2GGnugOtihzXS:nnOflT/ZFIjBz3xjTxynGUOUhXS

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012272-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2648	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
1168	2024-03-05_448171ebc71c340e292c03977cd7e444_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 1168 wrote to memory of 2648	1168	2024-03-05_448171ebc71c340e292c03977cd7e444_cryptolocker.exe	28
PID 1168 wrote to memory of 2648	1168	2024-03-05_448171ebc71c340e292c03977cd7e444_cryptolocker.exe	28
PID 1168 wrote to memory of 2648	1168	2024-03-05_448171ebc71c340e292c03977cd7e444_cryptolocker.exe	28
PID 1168 wrote to memory of 2648	1168	2024-03-05_448171ebc71c340e292c03977cd7e444_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-05_448171ebc71c340e292c03977cd7e444_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-05_448171ebc71c340e292c03977cd7e444_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1168
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:2648

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\hasfj.exe

Filesize
386KB

MD5
32f136a6fc41b42bc4b1c5f3dff00ae7

SHA1
c9ea74b7328229b3d08b4dc44a117150487ce09e

SHA256
c63f831ad63ac112adb2b880318cd774452962b13a9e3962e383d15ba7efe728

SHA512
fa4a03bf8b099695ec3c1adc52760481241875874e7fed456fe5862385742f0b3dfe78aef7e2a462e2aa1b11285b21207289167e2f94d5f77af90a730ee2d4fd

Download Submit
memory/1168-0-0x0000000001BA0000-0x0000000001BA6000-memory.dmp

Filesize
24KB

Download
memory/1168-1-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

Filesize
24KB

Download
memory/1168-2-0x0000000001BA0000-0x0000000001BA6000-memory.dmp

Filesize
24KB

Download
memory/2648-15-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Filesize
24KB

Download
memory/2648-16-0x0000000000510000-0x0000000000516000-memory.dmp

Filesize
24KB

Download