b895d789aa9ee36f15a0424555ffef86bbf8db6e897fdac0258741e3f6173130

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
25/05/2024, 04:06

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General

Target

2024-05-25_be5b58a71a930bd45e84ad997694da34_cryptolocker.exe
Size

37KB
MD5

be5b58a71a930bd45e84ad997694da34
SHA1

3e1d7836e99336f6f98ada668850c3f20338d4dc
SHA256

b895d789aa9ee36f15a0424555ffef86bbf8db6e897fdac0258741e3f6173130
SHA512

29fff915f5ef6214f39fae99e364bec2476ac6f409e476e04ccb0dc779ea9bc638ab167d5e85669a421e296bfdf9ee7051dcfcccf321eaa1eab5bb51f45a6ea7
SSDEEP

384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4XDIwNiJXxXunRSy9:btB9g/WItCSsAGjX7e9N0hunRv9

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000e000000012345-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2548	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1568	2024-05-25_be5b58a71a930bd45e84ad997694da34_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
1568	2024-05-25_be5b58a71a930bd45e84ad997694da34_cryptolocker.exe
2548	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1568 wrote to memory of 2548	1568	2024-05-25_be5b58a71a930bd45e84ad997694da34_cryptolocker.exe	28
PID 1568 wrote to memory of 2548	1568	2024-05-25_be5b58a71a930bd45e84ad997694da34_cryptolocker.exe	28
PID 1568 wrote to memory of 2548	1568	2024-05-25_be5b58a71a930bd45e84ad997694da34_cryptolocker.exe	28
PID 1568 wrote to memory of 2548	1568	2024-05-25_be5b58a71a930bd45e84ad997694da34_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-25_be5b58a71a930bd45e84ad997694da34_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-25_be5b58a71a930bd45e84ad997694da34_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1568
- 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:2548

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\gewos.exe

Filesize
37KB

MD5
ee265bf34ebb39fa225b7d74b8adeb76

SHA1
90a06942c434fc89c863b987c1ca95860351ae39

SHA256
47e84b04ed4add1d204b64c571879aaedccebd5050a69b3b6b6cd32017135b0e

SHA512
8522aa686ae07aaa0e04f4ba0fcda66436cbd77d5430703362ff8fe4db200ce3fd520a482cdc8fa7eb743b45c68a1e2987cb65538dc4bdcc439b64ceb253a6d7

Download Submit
memory/1568-0-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/1568-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1568-8-0x00000000005D0000-0x00000000005D6000-memory.dmp

Filesize
24KB

Download
memory/2548-23-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download