1ab2b0159da300d44b976761d1659f8657341d9316601a49004d143325a39326

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
18/08/2023, 14:13

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General

Target

2a216f01191d16ee4eca6b7d34c0daab_cryptolocker_JC.exe
Size

62KB
MD5

2a216f01191d16ee4eca6b7d34c0daab
SHA1

f1a0bf8a27e2d3b19282410ad27db7b295216808
SHA256

1ab2b0159da300d44b976761d1659f8657341d9316601a49004d143325a39326
SHA512

5ac031e24d7d8ff22fce39f585ade0b72b1c41652dc25816704ae3f715aa09affc50f6d08dba4680edf9a4057d311d580e23aceaa7bb7b18691e62acb2d9d927
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjYXUXojZv:1nK6a+qdOOtEvwDpjU

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2584	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2328	2a216f01191d16ee4eca6b7d34c0daab_cryptolocker_JC.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2328-54-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/2328-69-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/2584-71-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x000d00000001201c-70.dat	upx
behavioral1/files/0x000d00000001201c-65.dat	upx
behavioral1/files/0x000d00000001201c-80.dat	upx
behavioral1/memory/2584-82-0x0000000000500000-0x000000000050F311-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 2328 wrote to memory of 2584	2328	2a216f01191d16ee4eca6b7d34c0daab_cryptolocker_JC.exe	28
PID 2328 wrote to memory of 2584	2328	2a216f01191d16ee4eca6b7d34c0daab_cryptolocker_JC.exe	28
PID 2328 wrote to memory of 2584	2328	2a216f01191d16ee4eca6b7d34c0daab_cryptolocker_JC.exe	28
PID 2328 wrote to memory of 2584	2328	2a216f01191d16ee4eca6b7d34c0daab_cryptolocker_JC.exe	28

C:\Users\Admin\AppData\Local\Temp\2a216f01191d16ee4eca6b7d34c0daab_cryptolocker_JC.exe
"C:\Users\Admin\AppData\Local\Temp\2a216f01191d16ee4eca6b7d34c0daab_cryptolocker_JC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2584

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
62KB

MD5
3242a1e8d11b5fa1b7b6c49175ca4d51

SHA1
6352664745db784d92233b576cd4fa3b005bf4c5

SHA256
b34de6736f2de573f785faf4b6077b9540c19765f218e0e30b8e332cc0b164a7

SHA512
6dea95ec57fdbb4e45d637e4ceaef72706e420f0596cc0f0e3a3b9569b429339305a2b47636db4d85401f08acac87652d7eab96054fc24c3a373ab93e3da009e

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

Filesize
62KB

MD5
3242a1e8d11b5fa1b7b6c49175ca4d51

SHA1
6352664745db784d92233b576cd4fa3b005bf4c5

SHA256
b34de6736f2de573f785faf4b6077b9540c19765f218e0e30b8e332cc0b164a7

SHA512
6dea95ec57fdbb4e45d637e4ceaef72706e420f0596cc0f0e3a3b9569b429339305a2b47636db4d85401f08acac87652d7eab96054fc24c3a373ab93e3da009e

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

Filesize
62KB

MD5
3242a1e8d11b5fa1b7b6c49175ca4d51

SHA1
6352664745db784d92233b576cd4fa3b005bf4c5

SHA256
b34de6736f2de573f785faf4b6077b9540c19765f218e0e30b8e332cc0b164a7

SHA512
6dea95ec57fdbb4e45d637e4ceaef72706e420f0596cc0f0e3a3b9569b429339305a2b47636db4d85401f08acac87652d7eab96054fc24c3a373ab93e3da009e

Download Submit
memory/2328-60-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2328-69-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2328-54-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2328-68-0x0000000002480000-0x0000000002490000-memory.dmp

Filesize
64KB

Download
memory/2328-56-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/2328-55-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2328-81-0x0000000002480000-0x0000000002490000-memory.dmp

Filesize
64KB

Download
memory/2584-71-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2584-74-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2584-73-0x0000000000200000-0x0000000000206000-memory.dmp

Filesize
24KB

Download
memory/2584-82-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download