ca23dc265745a24a04818ea399d8370de141cbecea4e890fe3c9c7af94c47e1f

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
29/03/2024, 07:52

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General

Target

2024-03-29_911d1da623b309284744f61c0cd32dd0_cryptolocker.exe
Size

50KB
MD5

911d1da623b309284744f61c0cd32dd0
SHA1

f6a0f1136cf8eaf5f4a61cced165d056f84eb06e
SHA256

ca23dc265745a24a04818ea399d8370de141cbecea4e890fe3c9c7af94c47e1f
SHA512

31e2a29de880e6c7d686990d885a50f4fa8600e0be811951b7f0fdd949b8b231492390b9e8db394e0ad2d0fc170b26778a87db26a893cfb7b96007d342650b48
SSDEEP

768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37Yl6dIKld5CSO/G:bgGYcA/53GAA6y37Q6dI+d5GG

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000600000001208c-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
1864	hasfj.exe

Loads dropped DLL 1 IoCs

pid	Process
2884	2024-03-29_911d1da623b309284744f61c0cd32dd0_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 2884 wrote to memory of 1864	2884	2024-03-29_911d1da623b309284744f61c0cd32dd0_cryptolocker.exe	28
PID 2884 wrote to memory of 1864	2884	2024-03-29_911d1da623b309284744f61c0cd32dd0_cryptolocker.exe	28
PID 2884 wrote to memory of 1864	2884	2024-03-29_911d1da623b309284744f61c0cd32dd0_cryptolocker.exe	28
PID 2884 wrote to memory of 1864	2884	2024-03-29_911d1da623b309284744f61c0cd32dd0_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-29_911d1da623b309284744f61c0cd32dd0_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-29_911d1da623b309284744f61c0cd32dd0_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Users\Admin\AppData\Local\Temp\hasfj.exe
  "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
  2⤵
  - Executes dropped EXE
  PID:1864

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
50KB

MD5
5cf505422d8c922d060bb2c5baf692e7

SHA1
78012634ad50fa3600bc4ac9e4fb1ca13b0fd97f

SHA256
fcf5245846cf65b09ff6ec4e4eaf4a573210a942c577f34077c55ab53bbaac45

SHA512
deaca76b94c08364e0d5042ea4d0d6c2a57ce5b2f9ab0da7ef511f09b70e4546acefdca0a1175d9d9843dbe57c04482d4b108a6444668b3da7b9168ac2bb5916

Download Submit
memory/1864-15-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1864-19-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2884-0-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2884-1-0x0000000000470000-0x0000000000476000-memory.dmp

Filesize
24KB

Download
memory/2884-8-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download