1a2f823fb70771604658099829781215e74da70e532fd8540f6be2afb7cd5df6

Analysis

max time kernel
117s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/03/2024, 06:00

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General

Target

2024-03-10_66e48d958cf1df75e189b5981a0707ed_cryptolocker.exe
Size

41KB
MD5

66e48d958cf1df75e189b5981a0707ed
SHA1

65f168787552b3b77a0f194e6fbf770b0a25458a
SHA256

1a2f823fb70771604658099829781215e74da70e532fd8540f6be2afb7cd5df6
SHA512

b48d79686a6789f1ee0dc2e1284fc03a987b76e9362e1493739b2389c8e6a04b0a18f0a6821f17661b99b86844c5c2dad63cea91c24fb52a63eb47040608d03f
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunrkwIxZnzh+:btB9g/WItCSsAGjX7e9N0hunrknY

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000012226-14.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2296	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1320	2024-03-10_66e48d958cf1df75e189b5981a0707ed_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1320	2024-03-10_66e48d958cf1df75e189b5981a0707ed_cryptolocker.exe
2296	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1320 wrote to memory of 2296	1320	2024-03-10_66e48d958cf1df75e189b5981a0707ed_cryptolocker.exe	28
PID 1320 wrote to memory of 2296	1320	2024-03-10_66e48d958cf1df75e189b5981a0707ed_cryptolocker.exe	28
PID 1320 wrote to memory of 2296	1320	2024-03-10_66e48d958cf1df75e189b5981a0707ed_cryptolocker.exe	28
PID 1320 wrote to memory of 2296	1320	2024-03-10_66e48d958cf1df75e189b5981a0707ed_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-10_66e48d958cf1df75e189b5981a0707ed_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-10_66e48d958cf1df75e189b5981a0707ed_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1320
- C:\Users\Admin\AppData\Local\Temp\gewos.exe
  "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2296

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

C:\Users\Admin\AppData\Local\Temp\gewos.exe

Filesize
41KB

MD5
63e6a9838d812a5b5e854800806c5127

SHA1
ff264894bcc8b2c350cab089076e9af8c7042884

SHA256
d149fa2312b0327c9df255ebcd24afd1f127d0884be2ef6fa2def8e10e606f14

SHA512
e10e99f9f59c128040323a5f498ea0ae31128f278a7feb504ecd6539ca8cbe118f0ba85706443aa08da8eafc3a9ef39752ae92e1c44f08eef394e21035b494b8

Download Submit
memory/1320-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1320-2-0x00000000005A0000-0x00000000005A6000-memory.dmp

Filesize
24KB

Download
memory/1320-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2296-16-0x00000000002A0000-0x00000000002A6000-memory.dmp

Filesize
24KB

Download