999213e870d5914c25b1b3720240a380f63f350a0cd2cdfcb5bb42c1c648aba8

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21/09/2024, 15:30

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-09-21_dc004b4430b91d04b8808286c5fa89c9_cryptolocker.exe
Size

91KB
MD5

dc004b4430b91d04b8808286c5fa89c9
SHA1

2b50579dbc213d91ca08db9741fd97627941cbfa
SHA256

999213e870d5914c25b1b3720240a380f63f350a0cd2cdfcb5bb42c1c648aba8
SHA512

3aee32b3f226008c019d28e318df7aae6bdf5eef1e64298b8423b66dcce60ab18dbe3215e07113ec6ef5232d37f320554616b587aedef99f6e40f7d61e71db58
SSDEEP

1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalUG:1nK6a+qdOOtEvwDpjm

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2816	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2652	2024-09-21_dc004b4430b91d04b8808286c5fa89c9_cryptolocker.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2652-0-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/files/0x000700000001211a-15.dat	upx
behavioral1/memory/2652-14-0x0000000000500000-0x000000000050F311-memory.dmp	upx
behavioral1/memory/2816-25-0x0000000000500000-0x000000000050F311-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	2024-09-21_dc004b4430b91d04b8808286c5fa89c9_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 2816	2652	2024-09-21_dc004b4430b91d04b8808286c5fa89c9_cryptolocker.exe	30
PID 2652 wrote to memory of 2816	2652	2024-09-21_dc004b4430b91d04b8808286c5fa89c9_cryptolocker.exe	30
PID 2652 wrote to memory of 2816	2652	2024-09-21_dc004b4430b91d04b8808286c5fa89c9_cryptolocker.exe	30
PID 2652 wrote to memory of 2816	2652	2024-09-21_dc004b4430b91d04b8808286c5fa89c9_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-09-21_dc004b4430b91d04b8808286c5fa89c9_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-21_dc004b4430b91d04b8808286c5fa89c9_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2652
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2816

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

Loading Replay Monitor...

Downloads

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

Filesize
92KB

MD5
adccf60bc04ed576a146aab018e8e68f

SHA1
2905f827b1d20fc6edadd56e96ee0f81a4f81f7d

SHA256
b8be62df1bbcc44d8852482846325219eba0307478b3c47aa0ea0de8f2ff7560

SHA512
54ce2bb29391d019330ee90a95757e147202dc51f2ddec2a44f3f1ff23f91482d153e8365498d9f4dde13041df967778d3d1c4576aef481d9a018966ec1959c4

Download Submit
memory/2652-0-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2652-2-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/2652-1-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2652-9-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/2652-14-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download
memory/2816-17-0x00000000004E0000-0x00000000004E6000-memory.dmp

Filesize
24KB

Download
memory/2816-18-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Filesize
24KB

Download
memory/2816-25-0x0000000000500000-0x000000000050F311-memory.dmp

Filesize
60KB

Download