bd56d1d6f00a3c431d9bd98ead7569acb1049f3cb799f4c75be6da49a1f8c4c3

Analysis

max time kernel
149s
max time network
153s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
08/08/2023, 18:31

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General

Target

a14b3a56beb2a7088d5c7133ef30d317_cryptolocker_JC.exe
Size

79KB
MD5

a14b3a56beb2a7088d5c7133ef30d317
SHA1

d6ac66a5a3c7fa6521e1463b2c80a3a216d079a2
SHA256

bd56d1d6f00a3c431d9bd98ead7569acb1049f3cb799f4c75be6da49a1f8c4c3
SHA512

79ebc991c1f83fb3803ec4b7b752dddb5e30c6a2f4d11bf0e688b4d1b7a8fa20dbd9e4e7392d8b9ddea14b489d8f8d172a20601feb635dc102fb37d1240c004f
SSDEEP

1536:T6QFElP6n+gxmddpMOtEvwDpjwaxTNUXQaOKXz:T6a+rdOOtEvwDpjNQ

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2848	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2784	a14b3a56beb2a7088d5c7133ef30d317_cryptolocker_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2784-53-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0008000000012023-64.dat	upx
behavioral1/files/0x0008000000012023-69.dat	upx
behavioral1/memory/2784-68-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2848-70-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0008000000012023-79.dat	upx
behavioral1/memory/2848-80-0x0000000000500000-0x0000000000510000-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 2784 wrote to memory of 2848	2784	a14b3a56beb2a7088d5c7133ef30d317_cryptolocker_JC.exe	28
PID 2784 wrote to memory of 2848	2784	a14b3a56beb2a7088d5c7133ef30d317_cryptolocker_JC.exe	28
PID 2784 wrote to memory of 2848	2784	a14b3a56beb2a7088d5c7133ef30d317_cryptolocker_JC.exe	28
PID 2784 wrote to memory of 2848	2784	a14b3a56beb2a7088d5c7133ef30d317_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\a14b3a56beb2a7088d5c7133ef30d317_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\a14b3a56beb2a7088d5c7133ef30d317_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2848

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

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
79KB

MD5
591bfce73f90e146ff0b322be4fddcf5

SHA1
75410fe03677ba5fa0c55ed11803bd33a254e861

SHA256
1f67795f7157a9441237d1b5f351e1b4d9d7c091bc1920edd6ef2203b557d229

SHA512
0ed26d79a7f623acc22fa4369a874f5987477a8befd4f7555e4beb983c3e01288b2da2836667a78dea984b72aee85c84a73dd6f8f09d4f4b79e0238b5155e702

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
79KB

MD5
591bfce73f90e146ff0b322be4fddcf5

SHA1
75410fe03677ba5fa0c55ed11803bd33a254e861

SHA256
1f67795f7157a9441237d1b5f351e1b4d9d7c091bc1920edd6ef2203b557d229

SHA512
0ed26d79a7f623acc22fa4369a874f5987477a8befd4f7555e4beb983c3e01288b2da2836667a78dea984b72aee85c84a73dd6f8f09d4f4b79e0238b5155e702

Download Submit
\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
79KB

MD5
591bfce73f90e146ff0b322be4fddcf5

SHA1
75410fe03677ba5fa0c55ed11803bd33a254e861

SHA256
1f67795f7157a9441237d1b5f351e1b4d9d7c091bc1920edd6ef2203b557d229

SHA512
0ed26d79a7f623acc22fa4369a874f5987477a8befd4f7555e4beb983c3e01288b2da2836667a78dea984b72aee85c84a73dd6f8f09d4f4b79e0238b5155e702

Download Submit
memory/2784-68-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2784-55-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download
memory/2784-56-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2784-53-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2784-67-0x0000000001DC0000-0x0000000001DD0000-memory.dmp

Filesize
64KB

Download
memory/2784-54-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2848-70-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2848-72-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2848-73-0x00000000004A0000-0x00000000004A6000-memory.dmp

Filesize
24KB

Download
memory/2848-80-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download