df3c1a187f2dffac517d6b3a8b981fd3f63c494c0826181586acfac85e9119cf

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
19/08/2023, 13:59

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General

Target

4295caa2437880c5f583946020aa1622_cryptolocker_JC.exe
Size

79KB
MD5

4295caa2437880c5f583946020aa1622
SHA1

4c4798abb7bf18505b60792a3adef873d6bb97a9
SHA256

df3c1a187f2dffac517d6b3a8b981fd3f63c494c0826181586acfac85e9119cf
SHA512

06a3c56168b43bfadfee89acbb2ca27ea29608c6e2b3581c8468c038c7eecf990d9ee77d363e8e666309a506de916f7b5eab753f53e5951aa074f7af68c9f61a
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalDSnU5Gd:1nK6a+qdOOtEvwDpjl

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2372	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
3036	4295caa2437880c5f583946020aa1622_cryptolocker_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3036-54-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x0007000000012026-65.dat	upx
behavioral1/memory/3036-69-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x0007000000012026-68.dat	upx
behavioral1/memory/2372-71-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x0007000000012026-80.dat	upx
behavioral1/memory/2372-81-0x0000000000500000-0x000000000050F311-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 3036 wrote to memory of 2372	3036	4295caa2437880c5f583946020aa1622_cryptolocker_JC.exe	28
PID 3036 wrote to memory of 2372	3036	4295caa2437880c5f583946020aa1622_cryptolocker_JC.exe	28
PID 3036 wrote to memory of 2372	3036	4295caa2437880c5f583946020aa1622_cryptolocker_JC.exe	28
PID 3036 wrote to memory of 2372	3036	4295caa2437880c5f583946020aa1622_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\4295caa2437880c5f583946020aa1622_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\4295caa2437880c5f583946020aa1622_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3036
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2372

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
3612ae312acbca358ef49c369c8c0468

SHA1
fb5e1c1289dc1e923c5f9a0d2e92a8142380bb85

SHA256
3d1b9ea731bbff3127884d53a067d8303ff9bd3210fbfa1d30ff05374e1bfb76

SHA512
0f0a4673b44baaf1b39543470aac1aca423d5d2c62c33b87fd99d31b01ef2e1b477dc1ac99634b6cbc503d06ffad43e7d310a11ca3a221fb4181ccf372d76854

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

Filesize
79KB

MD5
3612ae312acbca358ef49c369c8c0468

SHA1
fb5e1c1289dc1e923c5f9a0d2e92a8142380bb85

SHA256
3d1b9ea731bbff3127884d53a067d8303ff9bd3210fbfa1d30ff05374e1bfb76

SHA512
0f0a4673b44baaf1b39543470aac1aca423d5d2c62c33b87fd99d31b01ef2e1b477dc1ac99634b6cbc503d06ffad43e7d310a11ca3a221fb4181ccf372d76854

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

Filesize
79KB

MD5
3612ae312acbca358ef49c369c8c0468

SHA1
fb5e1c1289dc1e923c5f9a0d2e92a8142380bb85

SHA256
3d1b9ea731bbff3127884d53a067d8303ff9bd3210fbfa1d30ff05374e1bfb76

SHA512
0f0a4673b44baaf1b39543470aac1aca423d5d2c62c33b87fd99d31b01ef2e1b477dc1ac99634b6cbc503d06ffad43e7d310a11ca3a221fb4181ccf372d76854

Download Submit
memory/2372-81-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2372-73-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download
memory/2372-74-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/2372-71-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/3036-57-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download
memory/3036-69-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/3036-70-0x00000000009A0000-0x00000000009B0000-memory.dmp

Filesize
64KB

Download
memory/3036-54-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/3036-56-0x0000000000450000-0x0000000000456000-memory.dmp

Filesize
24KB

Download
memory/3036-55-0x0000000000420000-0x0000000000426000-memory.dmp

Filesize
24KB

Download