91991d09b5447cccc1253844d8d538a8d9f9ca11c96e8bcdf684966849b91f0a

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-10-2024 08:43

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General

Target

2024-10-09_26854b78d871fe260957ec34ab28f35a_cryptolocker.exe
Size

71KB
MD5

26854b78d871fe260957ec34ab28f35a
SHA1

a630521be0d35961eddb45e6cb6ec5e9bf97a55e
SHA256

91991d09b5447cccc1253844d8d538a8d9f9ca11c96e8bcdf684966849b91f0a
SHA512

4b8282d9632007db6686d8a47a72d1045d794c4b24903e65972a2295d0060462132d7c92c95db98775ec9d205debf8c35eca506b54d9e0f4530e9b2d4d8af620
SSDEEP

1536:nj+4zs2cPVhlMOtEvwDpj4H8u8rZVTs9U:C4Q2c94OtEvwDpj4H8z9

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2280	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
3028	2024-10-09_26854b78d871fe260957ec34ab28f35a_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/3028-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000a00000001225d-11.dat	upx
behavioral1/memory/2280-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/3028-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2280-27-0x0000000000500000-0x0000000000510000-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	2024-10-09_26854b78d871fe260957ec34ab28f35a_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 3028 wrote to memory of 2280	3028	2024-10-09_26854b78d871fe260957ec34ab28f35a_cryptolocker.exe	30
PID 3028 wrote to memory of 2280	3028	2024-10-09_26854b78d871fe260957ec34ab28f35a_cryptolocker.exe	30
PID 3028 wrote to memory of 2280	3028	2024-10-09_26854b78d871fe260957ec34ab28f35a_cryptolocker.exe	30
PID 3028 wrote to memory of 2280	3028	2024-10-09_26854b78d871fe260957ec34ab28f35a_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-10-09_26854b78d871fe260957ec34ab28f35a_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-09_26854b78d871fe260957ec34ab28f35a_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3028
- 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:2280

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

Replay Monitor

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Downloads

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

Filesize
71KB

MD5
9774db80092872068e6e2d9e9c1528e3

SHA1
1f5538815242211f7b1f1a2b3c9029ebd711fba2

SHA256
ed83660f80a5cfcef706c90c7cdc0a4db8c96a9ce3b9352c9128de412bbe1158

SHA512
55a8cff916101ffc8d482aa4c986c38abc49d469142e4b3d8efdb4ae34daa28814c026da52d8eeadc40933b330451c593f049dafbe73460649c933fc5244a58b

Download Submit
memory/2280-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2280-19-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2280-26-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2280-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3028-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/3028-2-0x0000000000480000-0x0000000000486000-memory.dmp

Filesize
24KB

Download
memory/3028-9-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/3028-1-0x0000000000250000-0x0000000000256000-memory.dmp

Filesize
24KB

Download
memory/3028-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download