7ace7e20e0e3f3136dcb6f2297dcf81efa9ae44b17954acff1fe72556d0da0fb

Analysis

max time kernel
122s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
31/01/2025, 01:58

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General

Target

Contract-pdf.exe
Size

751KB
MD5

455b5452ab7cc1d908fa70d7745a96fd
SHA1

6fdbeda74a6d56453149e907b707cdd5ff7a193b
SHA256

72433c6e5c9594689111646fbf25edacc240f028664b0216559aa5952ca3ec23
SHA512

5e1687bd999369569202ac1b8255289cc75b0c0b2d0d54ab9c05676a7d37554bab09dbd38b4c45cd5d60cd56de9bcfc2efb7cf6d649679e938d7ddf0c3f436ad
SSDEEP

12288:pX9/Od/QKZlFhOeTp/muQrOnpCirVUkstBLyywCwOD/Wh:pXRY/bHt/FQOncFHp

Score

7^/10

discovery

Malware Config

Signatures

Loads dropped DLL 2 IoCs

pid	Process
1364	Contract-pdf.exe
1364	Contract-pdf.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\cellefngsler\zoofysiologis.Tek51	Contract-pdf.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Common Files\overlevelses.con	Contract-pdf.exe
File opened for modification	C:\Program Files (x86)\optrkkerens\Desparple197.ini	Contract-pdf.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\posttest.ini	Contract-pdf.exe

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
2896	1364	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 1 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	Contract-pdf.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1364 wrote to memory of 2896	1364	Contract-pdf.exe	31
PID 1364 wrote to memory of 2896	1364	Contract-pdf.exe	31
PID 1364 wrote to memory of 2896	1364	Contract-pdf.exe	31
PID 1364 wrote to memory of 2896	1364	Contract-pdf.exe	31

C:\Users\Admin\AppData\Local\Temp\Contract-pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Contract-pdf.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1364
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1364 -s 516
  2⤵
  - Program crash
  PID:2896

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\nsoA15F.tmp\System.dll

Filesize
12KB

MD5
4add245d4ba34b04f213409bfe504c07

SHA1
ef756d6581d70e87d58cc4982e3f4d18e0ea5b09

SHA256
9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706

SHA512
1bd260cabe5ea3cefbbc675162f30092ab157893510f45a1b571489e03ebb2903c55f64f89812754d3fe03c8f10012b8078d1261a7e73ac1f87c82f714bce03d

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