cde5ff40506be29370efc4aa669ed69c510097ca53c68fd232cf2e0550b546df

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18/02/2024, 20:51

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General

Target

2024-02-18_b7e222ddbc9d61f96e66fba234faab52_cryptolocker.exe
Size

39KB
MD5

b7e222ddbc9d61f96e66fba234faab52
SHA1

ae68e4a30f34d9f492b9c27d0486d05eb42de29f
SHA256

cde5ff40506be29370efc4aa669ed69c510097ca53c68fd232cf2e0550b546df
SHA512

552ae6557ea114d3f44cc3d7ec1d2d6bc7188ed65b5ad701080fa1920a34af289cd91e5fdd94936df201fda37cb7406526b84df5731fc3546b6ddcccd7d33a98
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBaac4HKcfFfH:X6QFElP6n+gJQMOtEvwDpjBsYK6V

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012251-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000c000000012251-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2056	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2800	2024-02-18_b7e222ddbc9d61f96e66fba234faab52_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 2800 wrote to memory of 2056	2800	2024-02-18_b7e222ddbc9d61f96e66fba234faab52_cryptolocker.exe	28
PID 2800 wrote to memory of 2056	2800	2024-02-18_b7e222ddbc9d61f96e66fba234faab52_cryptolocker.exe	28
PID 2800 wrote to memory of 2056	2800	2024-02-18_b7e222ddbc9d61f96e66fba234faab52_cryptolocker.exe	28
PID 2800 wrote to memory of 2056	2800	2024-02-18_b7e222ddbc9d61f96e66fba234faab52_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-18_b7e222ddbc9d61f96e66fba234faab52_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-18_b7e222ddbc9d61f96e66fba234faab52_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2056

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\asih.exe

Filesize
39KB

MD5
349ace0b73601ce242949afdb311973e

SHA1
2186354f4b4c198ce9ee25d6eb6002a80ee471a5

SHA256
bb2953a0875523f296a11e251ad6919af815066c28b4b8a49babefcf2e0e7922

SHA512
caa81465f2040d84a60b3fbf8dd0a40abb9ef49300c0cafd0920649b616a701139389e0ebb4e64977fe27c60cf8537229601fd2510b6894bed1089bec1cf20ac

Download Submit
memory/2056-15-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2056-17-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2800-0-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2800-2-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2800-1-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download