d6a953ab1adda8c2612fcf11ee58761e4922ed3eb46c4ff289667446f1cae3c3

Analysis

max time kernel
149s
max time network
149s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 17:30

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General

Target

2024-02-22_2e1676073d2b3d48b9c2e377da06150c_cryptolocker.exe
Size

63KB
MD5

2e1676073d2b3d48b9c2e377da06150c
SHA1

89f7e5602f105bd52f576160e9dda4a91a434c7f
SHA256

d6a953ab1adda8c2612fcf11ee58761e4922ed3eb46c4ff289667446f1cae3c3
SHA512

c57da8574ce278a86580d0036ecd0905069efbde11686c31a4b888f91a0e50aab11d207444901da47e01212be59271b6c3c7e9252b3d6676afa4e7d8da959314
SSDEEP

768:zQz7yVEhs9+syJP6ntOOtEvwDpjFelaB7yBEY9Su8F5mLZ5K7B:zj+soPSMOtEvwDpj4kpmeLmi

Score

9^/10

upx

Malware Config

Signatures

Detection of CryptoLocker Variants 3 IoCs

resource	yara_rule
behavioral1/memory/2972-1-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x0009000000012252-11.dat	CryptoLocker_rule2
behavioral1/memory/2588-23-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 3 IoCs

resource	yara_rule
behavioral1/memory/2972-1-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x0009000000012252-11.dat	CryptoLocker_set1
behavioral1/memory/2588-23-0x0000000000500000-0x0000000000510000-memory.dmp	CryptoLocker_set1

UPX dump on OEP (original entry point) 3 IoCs

resource	yara_rule
behavioral1/memory/2972-1-0x0000000000500000-0x0000000000510000-memory.dmp	UPX
behavioral1/files/0x0009000000012252-11.dat	UPX
behavioral1/memory/2588-23-0x0000000000500000-0x0000000000510000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
2588	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2972	2024-02-22_2e1676073d2b3d48b9c2e377da06150c_cryptolocker.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2972-1-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0009000000012252-11.dat	upx
behavioral1/memory/2588-23-0x0000000000500000-0x0000000000510000-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 2972 wrote to memory of 2588	2972	2024-02-22_2e1676073d2b3d48b9c2e377da06150c_cryptolocker.exe	28
PID 2972 wrote to memory of 2588	2972	2024-02-22_2e1676073d2b3d48b9c2e377da06150c_cryptolocker.exe	28
PID 2972 wrote to memory of 2588	2972	2024-02-22_2e1676073d2b3d48b9c2e377da06150c_cryptolocker.exe	28
PID 2972 wrote to memory of 2588	2972	2024-02-22_2e1676073d2b3d48b9c2e377da06150c_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-22_2e1676073d2b3d48b9c2e377da06150c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-22_2e1676073d2b3d48b9c2e377da06150c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  PID:2588

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\misid.exe

Filesize
64KB

MD5
9eb1f9c5f504d808e20d3a3df352c757

SHA1
955e9bd69d6b97394613de04cea000a0d661b798

SHA256
d7b9966c3f8832183f584927e0e724b44a9cae16c01661d54a8fb606e0dad136

SHA512
26b87f479a9d32049dab0e58e8467bc6a7251f1fbe822ca84425f0159244f07e902b59de487530c4723ead0fa2583ab08ee0df8c3c622611185246fdd81cd52d

Download Submit
memory/2588-16-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2588-23-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2972-0-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2972-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/2972-1-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2972-3-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download