74628d0b8b07079fb4d4785cd23fc26ceb374c92ac267021d2aa59352d431ac9

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
15-08-2023 16:10

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General

Target

f6a232fe36e519323759b8fc916e11c2_cryptolocker_JC.exe
Size

76KB
MD5

f6a232fe36e519323759b8fc916e11c2
SHA1

a25d4bfddc16a8782951b2e445608c314011f07d
SHA256

74628d0b8b07079fb4d4785cd23fc26ceb374c92ac267021d2aa59352d431ac9
SHA512

224e58b53162518a50b931a25ed3d49df6bdb2e26ad7f3ed40ef4366222ad5b23b6f8ed7dc2059252cf3debae3f5b0def360b2fb2ed48b02495c408281e9d3eb
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalDSnU2:1nK6a+qdOOtEvwDpjZ

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2924	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2504	f6a232fe36e519323759b8fc916e11c2_cryptolocker_JC.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2504-53-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x0009000000012023-64.dat	upx
behavioral1/memory/2504-66-0x00000000024C0000-0x00000000024D0000-memory.dmp	upx
behavioral1/memory/2504-68-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x0009000000012023-69.dat	upx
behavioral1/memory/2924-70-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x0009000000012023-79.dat	upx
behavioral1/memory/2924-80-0x0000000000500000-0x000000000050F311-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 2504 wrote to memory of 2924	2504	f6a232fe36e519323759b8fc916e11c2_cryptolocker_JC.exe	28
PID 2504 wrote to memory of 2924	2504	f6a232fe36e519323759b8fc916e11c2_cryptolocker_JC.exe	28
PID 2504 wrote to memory of 2924	2504	f6a232fe36e519323759b8fc916e11c2_cryptolocker_JC.exe	28
PID 2504 wrote to memory of 2924	2504	f6a232fe36e519323759b8fc916e11c2_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\f6a232fe36e519323759b8fc916e11c2_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\f6a232fe36e519323759b8fc916e11c2_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2504
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2924

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
77KB

MD5
3b3e413e74fd657106e08d25d25cf443

SHA1
6cf582df86e411bf06cafbf96ec654db05ddf589

SHA256
9f261c180cd5913713294d210483f62b99f068f8a0a6af878b13c0a0e43a9739

SHA512
513b3f281e6083d2afb4908388844addc1c93aa907d739fc1d95cc42b6001816eb9b176c0d94614a2ddec455e83a6be361de67f01576725f12aaa9cf68739b7b

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

Filesize
77KB

MD5
3b3e413e74fd657106e08d25d25cf443

SHA1
6cf582df86e411bf06cafbf96ec654db05ddf589

SHA256
9f261c180cd5913713294d210483f62b99f068f8a0a6af878b13c0a0e43a9739

SHA512
513b3f281e6083d2afb4908388844addc1c93aa907d739fc1d95cc42b6001816eb9b176c0d94614a2ddec455e83a6be361de67f01576725f12aaa9cf68739b7b

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

Filesize
77KB

MD5
3b3e413e74fd657106e08d25d25cf443

SHA1
6cf582df86e411bf06cafbf96ec654db05ddf589

SHA256
9f261c180cd5913713294d210483f62b99f068f8a0a6af878b13c0a0e43a9739

SHA512
513b3f281e6083d2afb4908388844addc1c93aa907d739fc1d95cc42b6001816eb9b176c0d94614a2ddec455e83a6be361de67f01576725f12aaa9cf68739b7b

Download Submit
memory/2504-68-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2504-56-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2504-66-0x00000000024C0000-0x00000000024D0000-memory.dmp

Filesize
64KB

Download
memory/2504-53-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2504-55-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/2504-54-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/2924-70-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2924-73-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2924-72-0x0000000000340000-0x0000000000346000-memory.dmp

Filesize
24KB

Download
memory/2924-80-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download