699fbd0e90c9d904ccde9fa7326ca0139c169b268a4d698dfa9b82e68950f7b2

Analysis

max time kernel
95s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2024 09:51

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General

Target

jestyyfre44321.exe
Size

1.1MB
MD5

c2d4e5290155193ed854fc6d27ec83a4
SHA1

de83fd85e5496b9ccc8f56bd162d27381835c1af
SHA256

e4c4e4111a17d0130da8cfb7694900d1d7f16bfb74ab45eff550e6319d88a602
SHA512

e873f5dc3e318be701bbcdc55f2a61060e72a54c58c17fc2b339b9faf5b9b52f764241d7c6f1c5758884fa76cb1257c605ea2cc1c9d085e99fd51fd457e65e73
SSDEEP

24576:UAOcZXcxP6P4C6oV5Ogn+pN6k77rvyOMF5:CH9C6qX+pN6kDbE5

Score

7^/10

discovery

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	jestyyfre44321.exe

Executes dropped EXE 1 IoCs

pid	Process
3932	isab.pif

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3932 set thread context of 2024	3932	isab.pif	85

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
736	2024	WerFault.exe	85

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	jestyyfre44321.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	isab.pif

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 548 wrote to memory of 3932	548	jestyyfre44321.exe	82
PID 548 wrote to memory of 3932	548	jestyyfre44321.exe	82
PID 548 wrote to memory of 3932	548	jestyyfre44321.exe	82
PID 3932 wrote to memory of 1960	3932	isab.pif	84
PID 3932 wrote to memory of 1960	3932	isab.pif	84
PID 3932 wrote to memory of 1960	3932	isab.pif	84
PID 3932 wrote to memory of 2024	3932	isab.pif	85
PID 3932 wrote to memory of 2024	3932	isab.pif	85
PID 3932 wrote to memory of 2024	3932	isab.pif	85
PID 3932 wrote to memory of 2024	3932	isab.pif	85

C:\Users\Admin\AppData\Local\Temp\jestyyfre44321.exe
"C:\Users\Admin\AppData\Local\Temp\jestyyfre44321.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:548
- C:\Users\Admin\9_53\isab.pif
  "C:\Users\Admin\9_53\isab.pif" telx.ogt
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3932
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:1960
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:2024
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2024 -s 80
      4⤵
      Program crash
      PID:736

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2024 -ip 2024
1⤵
PID:2368

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

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

C:\Users\Admin\9_53\aoss.xls

Filesize
40KB

MD5
c54a5a90e3803c572ed12150b510f97d

SHA1
8e2f02b84fd5f6e873cf51d343fb96a531a45e45

SHA256
87cd75d6b1a5607b39e5940d9021ca9281c3d47217e597e0601f6f6d02b06bf8

SHA512
d8f5395fde12d62e94e7969b7d298f03733c56adf3139de5a6167a59c497152c384631d6da12380136b00d10119a7fdec4a53208f5152c578a71b589b8f9e776

Download Submit
C:\Users\Admin\9_53\gcvbihuje.mro

Filesize
370KB

MD5
d40060faa63c30e509e8f6c5be0dcdc4

SHA1
4ec1022751784dc6b2a8819e6d4b860d6b38d82f

SHA256
15994b50140988529c4b8c18aebabcb60fedc34b45dfdac906569bda318f3414

SHA512
1761c72937b4476c666ffb93b96bb94427068dae217fe03c021082e5a988a09e3dacfd306b6440ca90de3ce48afa2aeb85829a1e76f3ff2fc2e636180f0eb1da

Download Submit
C:\Users\Admin\9_53\isab.pif

Filesize
820KB

MD5
0c996fa7285452f1302d8c781bd72972

SHA1
93b2a1bce155afec134804b3a2ef6b40ac0a4178

SHA256
470588c09deb416b91666b21a15cda3fd2e8807bdf83e27e5939415651bb006f

SHA512
e8d8c61f04707af05143e1c68ffcbf38a433766096a5c87c0f6b2b8cf54f0f2d4a60e39f4b0fb5a78dfbb97a2549d7c930887021bf513abf268a4677d9231c5e

Download Submit