558d57a92646fc28d3b939ad92f4f213f4cc9f2a97e5e97c58b97d1f0f2f59bd

Analysis

max time kernel
121s
max time network
129s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
21/02/2024, 13:35

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General

Target

2024-02-21_3d2d6c9fd3c9237428d4a0e1a1b302bb_cryptolocker.exe
Size

60KB
MD5

3d2d6c9fd3c9237428d4a0e1a1b302bb
SHA1

129bdb815bded26ebcb19be4bce380c7b8155fbc
SHA256

558d57a92646fc28d3b939ad92f4f213f4cc9f2a97e5e97c58b97d1f0f2f59bd
SHA512

2d851e92cfacf336ef372308c99e026ab3950c6b7585da453819fe80421406edafab54fd312d16dc5aefd488f576d28d21298552a38c80202d52cdae20819fe4
SSDEEP

1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUH6:btng54SMLr+/AO/kIhfoKMHdn

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x00080000000120f8-10.dat	CryptoLocker_rule2

Executes dropped EXE 1 IoCs

pid	Process
2216	gewos.exe

Loads dropped DLL 1 IoCs

pid	Process
1796	2024-02-21_3d2d6c9fd3c9237428d4a0e1a1b302bb_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
1796	2024-02-21_3d2d6c9fd3c9237428d4a0e1a1b302bb_cryptolocker.exe
2216	gewos.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1796 wrote to memory of 2216	1796	2024-02-21_3d2d6c9fd3c9237428d4a0e1a1b302bb_cryptolocker.exe	28
PID 1796 wrote to memory of 2216	1796	2024-02-21_3d2d6c9fd3c9237428d4a0e1a1b302bb_cryptolocker.exe	28
PID 1796 wrote to memory of 2216	1796	2024-02-21_3d2d6c9fd3c9237428d4a0e1a1b302bb_cryptolocker.exe	28
PID 1796 wrote to memory of 2216	1796	2024-02-21_3d2d6c9fd3c9237428d4a0e1a1b302bb_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-21_3d2d6c9fd3c9237428d4a0e1a1b302bb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-21_3d2d6c9fd3c9237428d4a0e1a1b302bb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1796
- 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:2216

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
61KB

MD5
11ab7e4c8757b6d8b01f215f7089fe1b

SHA1
ca948aa9f28113bf96b03ddc0a469f2fef52c38f

SHA256
9d81d7bf964420fec60ceba004a963c0c6b39caa53e0fb5a920bdb4680182768

SHA512
63b8583a00cad9ec0e575e2e4fdf456c44d1602e7cb10207ef4be59fb89b412bc145c445aee068cf809365e73d76633d68834d14aa1080e49a70783d60bea908

Download Submit
memory/1796-0-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/1796-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/1796-8-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2216-19-0x00000000002E0000-0x00000000002E6000-memory.dmp

Filesize
24KB

Download