adcd2960e5ad7c7e3447e98cc509b0fbf952fcd223df988b6f040047c955d0e0

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
08/06/2024, 04:06

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General

Target

2024-06-08_f1f1443886b56f8df6032ce2ea5a7758_cryptolocker.exe
Size

60KB
MD5

f1f1443886b56f8df6032ce2ea5a7758
SHA1

ed3bfc7140a1fc51aeb5165a6966dbcb1a9ed96b
SHA256

adcd2960e5ad7c7e3447e98cc509b0fbf952fcd223df988b6f040047c955d0e0
SHA512

247b2fc67d93088870391ac8e63d500c710b311518d4930609bdbc737ca3d62429795be73370db81367f3a917f7629779184823483a16be54078e8b1c0f88fa6
SSDEEP

768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAP6pcF:H6QFElP6n+gou9cvMOtEvwDpjCpVXm

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/1656-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0010000000014dae-11.dat	CryptoLocker_rule2
behavioral1/memory/1656-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3056-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/3056-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/1656-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0010000000014dae-11.dat	CryptoLocker_set1
behavioral1/memory/1656-15-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3056-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/3056-26-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/1656-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x0010000000014dae-11.dat	UPX
behavioral1/memory/1656-15-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/3056-16-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/3056-26-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
3056	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1656	2024-06-08_f1f1443886b56f8df6032ce2ea5a7758_cryptolocker.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1656-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0010000000014dae-11.dat	upx
behavioral1/memory/1656-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/3056-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/3056-26-0x0000000000500000-0x0000000000510000-memory.dmp	upx

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 1656 wrote to memory of 3056	1656	2024-06-08_f1f1443886b56f8df6032ce2ea5a7758_cryptolocker.exe	28
PID 1656 wrote to memory of 3056	1656	2024-06-08_f1f1443886b56f8df6032ce2ea5a7758_cryptolocker.exe	28
PID 1656 wrote to memory of 3056	1656	2024-06-08_f1f1443886b56f8df6032ce2ea5a7758_cryptolocker.exe	28
PID 1656 wrote to memory of 3056	1656	2024-06-08_f1f1443886b56f8df6032ce2ea5a7758_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-08_f1f1443886b56f8df6032ce2ea5a7758_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-08_f1f1443886b56f8df6032ce2ea5a7758_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1656
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:3056

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
61KB

MD5
6046ef73f76a7038cd2a1c092783cd1d

SHA1
6d7d7e015466ce54faeef421c98fbaa359b3b332

SHA256
804a4be84ebbe8e748346f910163efd950c9e6db33845129cf32b4a6845445d3

SHA512
00700b71edf50f673fd5b501f64c2760388f57d5ddfdf4ff9e1c74c4f114f0d8a32ce8d65dcaad82b3193eade766d6ff7e1b48a5c6080f31f2c44d962d07024b

Download Submit
memory/1656-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1656-9-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1656-2-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/1656-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1656-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3056-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3056-25-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/3056-18-0x00000000003A0000-0x00000000003A6000-memory.dmp

Filesize
24KB

Download
memory/3056-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download