57d00db89cfd6abcfbb1eea56b2eaccd8265553c5394da85c01087292397e6df

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
15/06/2024, 11:32

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General

Target

2024-06-15_acbb3ec4ddce6f48663c65ab8024056d_cryptolocker.exe
Size

48KB
MD5

acbb3ec4ddce6f48663c65ab8024056d
SHA1

402401455396c3e192423c50419960364d001c1a
SHA256

57d00db89cfd6abcfbb1eea56b2eaccd8265553c5394da85c01087292397e6df
SHA512

2d52446d6e9137bd701562079e86f18645a8ead2b63683ad69f2067c20ae06be76f0ffead923c78256653ed77b016603881db4993828e6798de083fd2bb62f69
SSDEEP

768:P6LsoEEeegiZPvEhHS5+Mh/QtOOtEvwDpjBpaD3TUogs/VXpAPcH:P6QFElP6k+MRQMOtEvwDpjBQpVXn

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2240-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012280-11.dat	CryptoLocker_rule2
behavioral1/memory/2140-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2140-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2240-8-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000a000000012280-11.dat	CryptoLocker_set1
behavioral1/memory/2140-16-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2140-26-0x0000000000500000-0x000000000050B000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2140	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2240	2024-06-15_acbb3ec4ddce6f48663c65ab8024056d_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 2240 wrote to memory of 2140	2240	2024-06-15_acbb3ec4ddce6f48663c65ab8024056d_cryptolocker.exe	28
PID 2240 wrote to memory of 2140	2240	2024-06-15_acbb3ec4ddce6f48663c65ab8024056d_cryptolocker.exe	28
PID 2240 wrote to memory of 2140	2240	2024-06-15_acbb3ec4ddce6f48663c65ab8024056d_cryptolocker.exe	28
PID 2240 wrote to memory of 2140	2240	2024-06-15_acbb3ec4ddce6f48663c65ab8024056d_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-15_acbb3ec4ddce6f48663c65ab8024056d_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-15_acbb3ec4ddce6f48663c65ab8024056d_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2240
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2140

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
48KB

MD5
28ee2bb584b2ce8351dfa6981a1e1589

SHA1
efe401d30bb27589e1eeb22a9d8170a851ae4c1f

SHA256
d40525da571b18d5c68451d198c297019c6fa503c472be0936b102483c46a736

SHA512
6af91e6ade0679a9fb8d8db7d78d8f9ef4484c83cab2b2637f476e57c19692c238987ff0b4378e19396624d90ebd698753e4948e1c01c9ae878e144c7e404589

Download Submit
memory/2140-16-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2140-18-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/2140-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2140-26-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2240-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2240-1-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2240-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2240-8-0x0000000000500000-0x000000000050B000-memory.dmp

Filesize
44KB

Download
memory/2240-14-0x00000000005D0000-0x00000000005DB000-memory.dmp

Filesize
44KB

Download