a20976535844ca1c62cf87b4be4ce5c81dd877fb851a2411bf16b7fc09a185e3

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20230831-en
resource tags

arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
submitted
03/09/2023, 11:36

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General

Target

2023-08-22_ad44f443f64a06c8c6336d59ef9d12e9_cryptolocker_JC.exe
Size

97KB
MD5

ad44f443f64a06c8c6336d59ef9d12e9
SHA1

eb187f5d39c47dac4375610d2d92be9137c07c5e
SHA256

a20976535844ca1c62cf87b4be4ce5c81dd877fb851a2411bf16b7fc09a185e3
SHA512

d5a02622491ec95b5538d04e2622c0d03cf8be84aa66c7478a5e050d642e28747858e6e712ea811425aca71bf37d59cabf6e7f49a5ecfdc75b39c01e670249c7
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgpwqWsvikF3:AnBdOOtEvwDpj6zk

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2892	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2056	2023-08-22_ad44f443f64a06c8c6336d59ef9d12e9_cryptolocker_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2056-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000e00000001200a-11.dat	upx
behavioral1/memory/2056-15-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2892-16-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000e00000001200a-14.dat	upx
behavioral1/files/0x000e00000001200a-24.dat	upx
behavioral1/memory/2892-25-0x0000000000500000-0x000000000050F000-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 2056 wrote to memory of 2892	2056	2023-08-22_ad44f443f64a06c8c6336d59ef9d12e9_cryptolocker_JC.exe	28
PID 2056 wrote to memory of 2892	2056	2023-08-22_ad44f443f64a06c8c6336d59ef9d12e9_cryptolocker_JC.exe	28
PID 2056 wrote to memory of 2892	2056	2023-08-22_ad44f443f64a06c8c6336d59ef9d12e9_cryptolocker_JC.exe	28
PID 2056 wrote to memory of 2892	2056	2023-08-22_ad44f443f64a06c8c6336d59ef9d12e9_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\2023-08-22_ad44f443f64a06c8c6336d59ef9d12e9_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2023-08-22_ad44f443f64a06c8c6336d59ef9d12e9_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2056
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2892

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
97KB

MD5
47cd6ddbfd96af788825057c7a4c3bb9

SHA1
33ea0c411e8dc46d245646daee5848cb421e85e9

SHA256
ae3d829f43e59665b11bfcbae0be97edc73fb9937cf4fa7bbc79512eed0668f4

SHA512
db71aaba2f771e112a22b6ecafc1ffb70a418e73aba9b3181682b2ce96aadafa7100e555f89791a64e608a947f3a14214550275b9c2c8f74f38e6fa37599d0ea

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

Filesize
97KB

MD5
47cd6ddbfd96af788825057c7a4c3bb9

SHA1
33ea0c411e8dc46d245646daee5848cb421e85e9

SHA256
ae3d829f43e59665b11bfcbae0be97edc73fb9937cf4fa7bbc79512eed0668f4

SHA512
db71aaba2f771e112a22b6ecafc1ffb70a418e73aba9b3181682b2ce96aadafa7100e555f89791a64e608a947f3a14214550275b9c2c8f74f38e6fa37599d0ea

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

Filesize
97KB

MD5
47cd6ddbfd96af788825057c7a4c3bb9

SHA1
33ea0c411e8dc46d245646daee5848cb421e85e9

SHA256
ae3d829f43e59665b11bfcbae0be97edc73fb9937cf4fa7bbc79512eed0668f4

SHA512
db71aaba2f771e112a22b6ecafc1ffb70a418e73aba9b3181682b2ce96aadafa7100e555f89791a64e608a947f3a14214550275b9c2c8f74f38e6fa37599d0ea

Download Submit
memory/2056-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2056-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2056-3-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2056-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2056-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2892-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2892-18-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2892-25-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download