2659d30fe3bcb2cae7f769e0d6f238309124d8d317dc6a583e5f7a8fd95debbf

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
14/10/2024, 20:45

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General

Target

2024-10-14_fac964691c02085ca0ca3e821e0b38f9_cryptolocker.exe
Size

82KB
MD5

fac964691c02085ca0ca3e821e0b38f9
SHA1

d4fce9daa1f0c2134cff53fcc83230b67f6cd417
SHA256

2659d30fe3bcb2cae7f769e0d6f238309124d8d317dc6a583e5f7a8fd95debbf
SHA512

e314d14a815f523e9b17a2bdfabd27df18107e3559d873672309ad711755bc4d00715292d304ea3ccf1e3d9594fa403b5bfb9196ceda5ba59ba9aa3d5bbe5979
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7Qu+:zCsanOtEvwDpj9

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2736	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
2332	2024-10-14_fac964691c02085ca0ca3e821e0b38f9_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2332-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000900000001225f-11.dat	upx
behavioral1/memory/2736-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2332-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2736-25-0x0000000000500000-0x0000000000510000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-14_fac964691c02085ca0ca3e821e0b38f9_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	misid.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2332 wrote to memory of 2736	2332	2024-10-14_fac964691c02085ca0ca3e821e0b38f9_cryptolocker.exe	31
PID 2332 wrote to memory of 2736	2332	2024-10-14_fac964691c02085ca0ca3e821e0b38f9_cryptolocker.exe	31
PID 2332 wrote to memory of 2736	2332	2024-10-14_fac964691c02085ca0ca3e821e0b38f9_cryptolocker.exe	31
PID 2332 wrote to memory of 2736	2332	2024-10-14_fac964691c02085ca0ca3e821e0b38f9_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-10-14_fac964691c02085ca0ca3e821e0b38f9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-14_fac964691c02085ca0ca3e821e0b38f9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2332
- C:\Users\Admin\AppData\Local\Temp\misid.exe
  "C:\Users\Admin\AppData\Local\Temp\misid.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\misid.exe

Filesize
82KB

MD5
00c7cc707dddbc967935d7ab3a06f3bc

SHA1
287ca024003ce53e4c1a2822bbf5383a5ede4937

SHA256
fb6c44ead5d436a339176b110da8225f9883f694d04e1649f0c79fce3f34cbc6

SHA512
1efa9c4c23d06f102c4d4f21245be88c7ca122819093953a0b5c26491757c0b2b03c991f8a814b1b4f75690f98e1c308eeb9c9840f9e8d502cade6a9ac0c0bd7

Download Submit
memory/2332-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2332-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2332-3-0x0000000000380000-0x0000000000386000-memory.dmp

Filesize
24KB

Download
memory/2332-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2332-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2736-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2736-18-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2736-25-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download