8647c0c95ccd8ff3d626976f1e8d99e03b0b92c40f9050d2fcfaa66d64f9a647

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
25-08-2024 06:43

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General

Target

2024-08-25_78ad03c7e2ed9ff0a387d005758ab63c_cryptolocker.exe
Size

82KB
MD5

78ad03c7e2ed9ff0a387d005758ab63c
SHA1

54f7267861b44625f4095c107a4431577beebfda
SHA256

8647c0c95ccd8ff3d626976f1e8d99e03b0b92c40f9050d2fcfaa66d64f9a647
SHA512

79b6bff43e2ef2d641f80f16a46ad85c91bc612579d42da6ea0ef9ee21829de2b3f2d7318eb32f2fc2d931790044b76cb8c23bd383826186c87643210bbc50df
SSDEEP

1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7Qi4:zCsanOtEvwDpjr

Score

7^/10

discovery upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1616	misid.exe

Loads dropped DLL 1 IoCs

pid	Process
1624	2024-08-25_78ad03c7e2ed9ff0a387d005758ab63c_cryptolocker.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1624-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/files/0x000c000000016d28-11.dat	upx
behavioral1/memory/1624-16-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1616-17-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral1/memory/1616-27-0x0000000000500000-0x0000000000510000-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	2024-08-25_78ad03c7e2ed9ff0a387d005758ab63c_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 1624 wrote to memory of 1616	1624	2024-08-25_78ad03c7e2ed9ff0a387d005758ab63c_cryptolocker.exe	30
PID 1624 wrote to memory of 1616	1624	2024-08-25_78ad03c7e2ed9ff0a387d005758ab63c_cryptolocker.exe	30
PID 1624 wrote to memory of 1616	1624	2024-08-25_78ad03c7e2ed9ff0a387d005758ab63c_cryptolocker.exe	30
PID 1624 wrote to memory of 1616	1624	2024-08-25_78ad03c7e2ed9ff0a387d005758ab63c_cryptolocker.exe	30

C:\Users\Admin\AppData\Local\Temp\2024-08-25_78ad03c7e2ed9ff0a387d005758ab63c_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-25_78ad03c7e2ed9ff0a387d005758ab63c_cryptolocker.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1624
- 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:1616

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
3c0c9524c870cbe2c662359b6f5c066c

SHA1
9e0aa87611ffc7a90dd7bdad90298a27c9e418bc

SHA256
892c012ecb6212dd14ff2f490ea4283329add97b70633228883ad5a38d9b13dd

SHA512
27c78f0c902a1d2053b8c759322c171f277f84b7aeba9e4f321e505682ca59524b7f0047144e8e4ad13517ca684a98bcb2d9e0dccc49c97cc4e779bb129649fd

Download Submit
memory/1616-17-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1616-19-0x0000000000320000-0x0000000000326000-memory.dmp

Filesize
24KB

Download
memory/1616-20-0x0000000000350000-0x0000000000356000-memory.dmp

Filesize
24KB

Download
memory/1616-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1624-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/1624-1-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1624-3-0x0000000000270000-0x0000000000276000-memory.dmp

Filesize
24KB

Download
memory/1624-2-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1624-13-0x0000000002480000-0x0000000002490000-memory.dmp

Filesize
64KB

Download
memory/1624-16-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download