464e7236ec21b33ac1593d9e587c7f8f867b240966c60c9b52a7fa0a55bfa1f8

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
23-01-2024 20:58

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General

Target

2024-01-23_c9ec9d23684b2bacb1787be9d5dde2c2_cryptolocker.exe
Size

50KB
MD5

c9ec9d23684b2bacb1787be9d5dde2c2
SHA1

74896f15b499ea00d39215f3884f2ea46950554d
SHA256

464e7236ec21b33ac1593d9e587c7f8f867b240966c60c9b52a7fa0a55bfa1f8
SHA512

81e1c880e27aca8fdf2b33ef9fc71dfdb745af2688efe8b4455413ef8e1cce647011adb99b89ee3db4dc77c5ba9a51e81c397dc84e165df84cb514c82ae4cfaf
SSDEEP

1536:V6QFElP6n+gMQMOtEvwDpjeJQ7pojaklo1:V6a+pOtEvwDpjF

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001223f-22.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x000800000001223f-22.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2624	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2116	2024-01-23_c9ec9d23684b2bacb1787be9d5dde2c2_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 2116 wrote to memory of 2624	2116	2024-01-23_c9ec9d23684b2bacb1787be9d5dde2c2_cryptolocker.exe	26
PID 2116 wrote to memory of 2624	2116	2024-01-23_c9ec9d23684b2bacb1787be9d5dde2c2_cryptolocker.exe	26
PID 2116 wrote to memory of 2624	2116	2024-01-23_c9ec9d23684b2bacb1787be9d5dde2c2_cryptolocker.exe	26
PID 2116 wrote to memory of 2624	2116	2024-01-23_c9ec9d23684b2bacb1787be9d5dde2c2_cryptolocker.exe	26

C:\Users\Admin\AppData\Local\Temp\2024-01-23_c9ec9d23684b2bacb1787be9d5dde2c2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-23_c9ec9d23684b2bacb1787be9d5dde2c2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2116
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2624

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\asih.exe

Filesize
50KB

MD5
27a2f38dd85183fbc461d1c94754964a

SHA1
4e31cf4369058e1da6320bc583a9583e565adc37

SHA256
fbb5c73c759451fca3ea4d46aac5b8f9366042335bf9d90e827ef622dd9ed040

SHA512
8bd1ac8dff4ecb1ce8c6b865c698dc8e65ff6891978d454096a8f3bb555ab16b21be3d24768f992ff3f3315c52fb0f8ad219026c5a96d469c4ae0217488f3056

Download Submit
memory/2116-1-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2116-3-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2116-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2624-15-0x00000000002B0000-0x00000000002B6000-memory.dmp

Filesize
24KB

Download
memory/2624-16-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download