bfa6c8a7e34b0b943880ccc6455932239754859233802738399bd3cdf99b6595

Analysis

max time kernel
132s
max time network
139s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
07-08-2024 01:08

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General

Target

2024-08-07_ba9f7c4c072dbef249cbeb09b1fe0feb_cryptolocker.exe
Size

59KB
MD5

ba9f7c4c072dbef249cbeb09b1fe0feb
SHA1

79f49df42d38dcd2ed4e440261ebe5c9568d78df
SHA256

bfa6c8a7e34b0b943880ccc6455932239754859233802738399bd3cdf99b6595
SHA512

ee9a3df8921f5c779b114a456fc1f0dbd50a16a2b573b95628cd5ac63fb0cff20293443e6e415342428192a7b6981bd89d79dd814a73b679bd3b9f0b8d238121
SSDEEP

768:z6LsoEEeegiZPvEhHSG+gzum/kLyMro2GtOOtEvwDpj/YMLam5ax+NM:z6QFElP6n+gKmddpMOtEvwDpj9aYaj

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2016	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2984	2024-08-07_ba9f7c4c072dbef249cbeb09b1fe0feb_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2984-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x0009000000012118-11.dat	upx
behavioral1/memory/2016-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2984-15-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/2016-26-0x0000000000500000-0x0000000000510000-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	2024-08-07_ba9f7c4c072dbef249cbeb09b1fe0feb_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 2984 wrote to memory of 2016	2984	2024-08-07_ba9f7c4c072dbef249cbeb09b1fe0feb_cryptolocker.exe	31
PID 2984 wrote to memory of 2016	2984	2024-08-07_ba9f7c4c072dbef249cbeb09b1fe0feb_cryptolocker.exe	31
PID 2984 wrote to memory of 2016	2984	2024-08-07_ba9f7c4c072dbef249cbeb09b1fe0feb_cryptolocker.exe	31
PID 2984 wrote to memory of 2016	2984	2024-08-07_ba9f7c4c072dbef249cbeb09b1fe0feb_cryptolocker.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-08-07_ba9f7c4c072dbef249cbeb09b1fe0feb_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-07_ba9f7c4c072dbef249cbeb09b1fe0feb_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2984
- 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:2016

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\asih.exe

Filesize
59KB

MD5
c6b8b6c674820d48cadc4770a03c2808

SHA1
977f725abb5412eb272e84072ce6e90c3f3512bc

SHA256
ab9edb7e190073915764982ff6ffaaab84dcfbd5bfcba3913f195f61956dd009

SHA512
e2e2847aed33be354e88a08b0000869a52e603f98c197575f2088fe4f8589b1e0b5c08700a293e33269ef85d7118492f8fee18207ececb420eb9c801f621ba07

Download Submit
memory/2016-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2016-18-0x00000000005B0000-0x00000000005B6000-memory.dmp

Filesize
24KB

Download
memory/2016-25-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/2016-26-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2984-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/2984-1-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2984-2-0x00000000001C0000-0x00000000001C6000-memory.dmp

Filesize
24KB

Download
memory/2984-3-0x00000000003F0000-0x00000000003F6000-memory.dmp

Filesize
24KB

Download
memory/2984-15-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download