e079abca626b7138e12e2496a1510308770e4454c300b7be1af4deaa7b4dc5d6

Analysis

max time kernel
148s
max time network
155s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11/05/2024, 04:37

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General

Target

2024-05-11_47985eebebddb0bfb5e12080c66642d2_cryptolocker.exe
Size

39KB
MD5

47985eebebddb0bfb5e12080c66642d2
SHA1

667ec5daf2a6f30ee992cbb34230e464396f22d0
SHA256

e079abca626b7138e12e2496a1510308770e4454c300b7be1af4deaa7b4dc5d6
SHA512

fcda83a5116947f1215c64fb81952f9e8391de60b1facd53ed0202ae25c41bc19a41b67a1d106b6811fb0dc78ff5af6b70a43ef152fece51bbe700756b154aed
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITY9iSn:qDdFJy3QMOtEvwDpjjWMl7TA

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 5 IoCs

resource	yara_rule
behavioral1/memory/2964-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000b000000014230-11.dat	CryptoLocker_rule2
behavioral1/memory/2600-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2964-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2600-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 5 IoCs

resource	yara_rule
behavioral1/memory/2964-0-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000b000000014230-11.dat	CryptoLocker_set1
behavioral1/memory/2600-17-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2964-16-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2600-27-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral1/memory/2964-0-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x000b000000014230-11.dat	UPX
behavioral1/memory/2600-17-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2964-16-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/memory/2600-27-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2600	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2964	2024-05-11_47985eebebddb0bfb5e12080c66642d2_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2964-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000b000000014230-11.dat	upx
behavioral1/memory/2600-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2964-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2600-27-0x0000000000500000-0x0000000000510000-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 2964 wrote to memory of 2600	2964	2024-05-11_47985eebebddb0bfb5e12080c66642d2_cryptolocker.exe	28
PID 2964 wrote to memory of 2600	2964	2024-05-11_47985eebebddb0bfb5e12080c66642d2_cryptolocker.exe	28
PID 2964 wrote to memory of 2600	2964	2024-05-11_47985eebebddb0bfb5e12080c66642d2_cryptolocker.exe	28
PID 2964 wrote to memory of 2600	2964	2024-05-11_47985eebebddb0bfb5e12080c66642d2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-05-11_47985eebebddb0bfb5e12080c66642d2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-11_47985eebebddb0bfb5e12080c66642d2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2600

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
05d9558697dded984ac40d9c143c79be

SHA1
7290f4a7bb3877d87a818016fff5b0de53df6903

SHA256
37751241395330d013f848914f0e42f186c71099d4ff1b797c58320344746105

SHA512
eec57ac993078693336c4f3ba82f11844b05b5109c7e534d2dcfbb82ea7d243b4f399b2e369a6d2cc0e76a5e2f9c993bc31e1c49f7fd6d7df2d01353d095c1c5

Download Submit
memory/2600-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2600-19-0x0000000000490000-0x0000000000496000-memory.dmp

Filesize
24KB

Download
memory/2600-26-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2600-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2964-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2964-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2964-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2964-3-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2964-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download