eece98865bb0903c7473c7ae1749f31c8144214b281a9a6ee3f9fd4a4cd5dfb1

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
18-08-2024 17:32

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General

Target

pdfstamp.exe
Size

1.3MB
MD5

9737f4badfc7733593a888d33e1b3054
SHA1

0de4d607f97d620447661b32b6ef1aefd0f69618
SHA256

99eb6167fc4160e7a8b81d13c3e6c1d2b65d1ed306ae36209ca354286ee6b1fd
SHA512

a9d6392ee2523534de73e1d291b335fca12cdc452c61426412fa937481296050bb13b9293927739d3a3183a157511ea5f7f78e62157d375c4a8adaa1287d411d
SSDEEP

24576:7I39d3dKcN6Cw7T0oM8Kjb0qKSZRAGStta2uO93cVTvTUuDhgebVKo0Ld8:76dtKcN5wkoAX8vL9MtrFVbv4e

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4820	is-50NO8.tmp

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	pdfstamp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	is-50NO8.tmp

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 4820	2304	pdfstamp.exe	84
PID 2304 wrote to memory of 4820	2304	pdfstamp.exe	84
PID 2304 wrote to memory of 4820	2304	pdfstamp.exe	84

C:\Users\Admin\AppData\Local\Temp\pdfstamp.exe
"C:\Users\Admin\AppData\Local\Temp\pdfstamp.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2304
- C:\Users\Admin\AppData\Local\Temp\is-KSERO.tmp\is-50NO8.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-KSERO.tmp\is-50NO8.tmp" /SL4 $70042 "C:\Users\Admin\AppData\Local\Temp\pdfstamp.exe" 1083843 52224
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4820

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

C:\Users\Admin\AppData\Local\Temp\is-KSERO.tmp\is-50NO8.tmp

Filesize
647KB

MD5
b683339ce008e97a0243a0f83bca1e09

SHA1
a8a4c078225ec9d94912762bda3a745d83dbe8f4

SHA256
5c6b8a1ab73cd03140040a3093e0d8466c666cd3fe17e8660dbc1a30d0b6f925

SHA512
c39b2501f5887c363633c94b04d58396a0d285ff65963ed513e99ff2dd7f36da323904278c6a64b9f1f637aaeed17e3d9d40540baa9805369cc664a32c62c780

Download Submit
memory/2304-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2304-2-0x0000000000401000-0x000000000040A000-memory.dmp

Filesize
36KB

Download
memory/2304-13-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4820-12-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4820-14-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download