f622f4f4836c92a253168aaf7ef01ad1b6796498f49e350e889cb8f98ed60d9a

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16/03/2024, 07:53

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General

Target

2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe
Size

26KB
MD5

bb56b1f43609cbc2282c2684354ae7aa
SHA1

5e292c817fc26eb4625c6aebc8dd62603a7feb1f
SHA256

f622f4f4836c92a253168aaf7ef01ad1b6796498f49e350e889cb8f98ed60d9a
SHA512

8e7c5683f7b199deeee23f76ac29272a884c94fd8ea082cdfbd015bdd04ed04757e29346311bb0cd4636a1b7f856eb3d949c6f40bb5e5c4354376da10d74a8bf
SSDEEP

384:qxOZzyjOnqGAs+8ULueO4NdE8tOOtEvwDpjqIGRYK1sGGYkxOqy:q0ZziOWwULueOSdE8tOOtEvwDpjeYy

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/936-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000a000000012272-11.dat	CryptoLocker_rule2
behavioral1/memory/936-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2996-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2996-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/936-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2996-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2996-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/936-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x000a000000012272-11.dat	UPX
behavioral1/memory/936-15-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2996-16-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2996-26-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2996	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
936	2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_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 936 wrote to memory of 2996	936	2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe	28
PID 936 wrote to memory of 2996	936	2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe	28
PID 936 wrote to memory of 2996	936	2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe	28
PID 936 wrote to memory of 2996	936	2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-16_bb56b1f43609cbc2282c2684354ae7aa_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:936
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2996

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
27KB

MD5
7c518f4bb7b992c690fe72bfcc3165d1

SHA1
1fdd7ec23bbbd342888309d73f57a10b2ea55d4d

SHA256
12c6e4a73cd9fdf73759eec54cb9fccee0ba700fb5a7b82dfa3dac96f00d6522

SHA512
3b111ab13b676d541fee745a28a6cd240fad0a4e990a419b181d3d339c258bb12b299f469336759cab5667914e8b1975e56aaccb8a69453d84d68979d8c35f2f

Download Submit
memory/936-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/936-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/936-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/936-3-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/936-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2996-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2996-18-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2996-23-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2996-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download