6d2f4aaa61150976ed272f964538685b586124795164c97bae7eec12f7e11248

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
06/03/2024, 04:04

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General

Target

2024-03-06_fbd09989b625d988c873a8c598debf33_cryptolocker.exe
Size

38KB
MD5

fbd09989b625d988c873a8c598debf33
SHA1

ce16c202bef301133beb0b0582ba8534d4fd6e49
SHA256

6d2f4aaa61150976ed272f964538685b586124795164c97bae7eec12f7e11248
SHA512

157433cf03c2ebf7652f402d3e6622f34a0e78cadc5d9eaa6d28158d19edb7001cffe550327c0afd9009b8e36943cdb5433e264fbc681cd1cf0a08540a616d4c
SSDEEP

768:bIDOw9UiaCHfjnE0Sf88AvvP1oghYvm9/6Dy8wJv:bIDOw9a0Dwo3P1ojvUSDhwB

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000012252-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2256	lossy.exe

Loads dropped DLL 1 IoCs

pid	Process
2760	2024-03-06_fbd09989b625d988c873a8c598debf33_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 2760 wrote to memory of 2256	2760	2024-03-06_fbd09989b625d988c873a8c598debf33_cryptolocker.exe	28
PID 2760 wrote to memory of 2256	2760	2024-03-06_fbd09989b625d988c873a8c598debf33_cryptolocker.exe	28
PID 2760 wrote to memory of 2256	2760	2024-03-06_fbd09989b625d988c873a8c598debf33_cryptolocker.exe	28
PID 2760 wrote to memory of 2256	2760	2024-03-06_fbd09989b625d988c873a8c598debf33_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-06_fbd09989b625d988c873a8c598debf33_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-06_fbd09989b625d988c873a8c598debf33_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2760
- C:\Users\Admin\AppData\Local\Temp\lossy.exe
  "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
  2⤵
  - Executes dropped EXE
  PID:2256

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\lossy.exe

Filesize
38KB

MD5
cb2274d612b0fc98ac23f286f3c7a40c

SHA1
cd3ce625844b6e1e4a3d03ff76602fa24875665d

SHA256
ade40a347a60f104ece658f0b976b8bc26e8b032464828a35d1149ff64bb0c07

SHA512
09ffc49769fe7fefcaaf1196e2bc5b8f04e1316c03f4b8e5d2db7edfb6d1a46a80130cb9937c189351855f9b48911ce5d8a82f6c13a0d61ca8376224b5743b76

Download Submit
memory/2256-15-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2760-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2760-1-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2760-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download