a21fddcea968b0e1a8eff9ebf1c226c574d2133e930a447baed554e165e4a073

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
31/05/2024, 19:47

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General

Target

2024-05-31_3ee209a51a725da5dbf1c23016bdfc49_cryptolocker.exe
Size

39KB
MD5

3ee209a51a725da5dbf1c23016bdfc49
SHA1

77aa5697e421e9153fbcdbd1cf98fbe6256084cb
SHA256

a21fddcea968b0e1a8eff9ebf1c226c574d2133e930a447baed554e165e4a073
SHA512

f235dd7e2daea520aea0fa0872d2c7e03d5946e9071c34f8e70f48833c3a77df1fea2b54c3c7050b8808273c9214e08c3cc273f75da74ce860e0de9be5ce5ed0
SSDEEP

768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFCw0U:X6QFElP6n+gJQMOtEvwDpjBmzDU5U

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001227e-10.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000d00000001227e-10.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2812	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2928	2024-05-31_3ee209a51a725da5dbf1c23016bdfc49_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 2928 wrote to memory of 2812	2928	2024-05-31_3ee209a51a725da5dbf1c23016bdfc49_cryptolocker.exe	28
PID 2928 wrote to memory of 2812	2928	2024-05-31_3ee209a51a725da5dbf1c23016bdfc49_cryptolocker.exe	28
PID 2928 wrote to memory of 2812	2928	2024-05-31_3ee209a51a725da5dbf1c23016bdfc49_cryptolocker.exe	28
PID 2928 wrote to memory of 2812	2928	2024-05-31_3ee209a51a725da5dbf1c23016bdfc49_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-31_3ee209a51a725da5dbf1c23016bdfc49_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-31_3ee209a51a725da5dbf1c23016bdfc49_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2928
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2812

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
60ab673280ba5fef724cca341661e38a

SHA1
a8ade8a7c993dc09f84a89045715379d127cecd1

SHA256
c206096c504ba2de00929a2624181fc816a8e9c4efb1c82a2a9e7be8d436d80c

SHA512
83df60bdc2bbc58f4a5df5b873d379ef1f20539d9a96d4adf3c194fe5fdde843a60eb3f25316e3c89e5c09e52fe95447ba6102f3bca71479c593851f5311b02c

Download Submit
memory/2812-15-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2812-22-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2928-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2928-1-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2928-8-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download