bc845ab964ef0e15f09dc27adc16edb3381e9aac924d5787ef0046dbe62347d0

Analysis

max time kernel
117s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-01-2025 08:59

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General

Target

Resources/Data/x64/r4_groupH_simple_rpcenc_017w.phpt
Size

1KB
MD5

c9ff7b8b28e4f6f1960cb2250a51b4e9
SHA1

4b7236cb5d51ea64907c85c2520e7d58de500852
SHA256

19566e8db5d6df0af3b0db04c081c8755d51287d6cf037ea76daa149719594a7
SHA512

ae8687155ae836cc2a8085e784e153b992d81063db662224497ee2f4c4999446fbfa79d34f59410ab69f7c469ea28530fc1e1251e480d3af5f528c8cb9f9aaf2

Score

3^/10

discovery

Malware Config

Signatures

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 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	AcroRd32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2824	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2824	AcroRd32.exe
2824	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 2132	2276	cmd.exe	32
PID 2276 wrote to memory of 2132	2276	cmd.exe	32
PID 2276 wrote to memory of 2132	2276	cmd.exe	32
PID 2132 wrote to memory of 2824	2132	rundll32.exe	33
PID 2132 wrote to memory of 2824	2132	rundll32.exe	33
PID 2132 wrote to memory of 2824	2132	rundll32.exe	33
PID 2132 wrote to memory of 2824	2132	rundll32.exe	33

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Resources\Data\x64\r4_groupH_simple_rpcenc_017w.phpt
1⤵
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Resources\Data\x64\r4_groupH_simple_rpcenc_017w.phpt
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2132
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\Resources\Data\x64\r4_groupH_simple_rpcenc_017w.phpt"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2824

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

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
0d6276e23de5f1afbaa475a55ffe4be9

SHA1
e1ef7eed0bb52b64e9501a22547835c5ebf6df0d

SHA256
1b1bede20715cbbcd6520c78d93f16527c9bb46667c4715dba1524a45ebd49b4

SHA512
67f598c3330256357841a31a363889aec78ce245391deb247e5a37b98854a85127b286093deb42509154ea9458239fb7350bba2fb1f260437fee7dec66745445

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