941eca038e0c93893666d096d658b6fb2a4ba56dfec97b5c67e748c521207dfa

Analysis

max time kernel
141s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
14/09/2024, 06:41

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General

Target

Notepaper.exe
Size

967KB
MD5

6ee27fafbaaf510fd200d0078f440316
SHA1

cb2d650e87437ab509809e1198df8aad4923a84d
SHA256

bc3a4682c3cfe3668f7db9080d1bc9ccf760a960bdfa280ee6647f176b2f035c
SHA512

67d72b8ef006de8aa2b9648f531ef5a871326d728f4e57e3b63d2a4beb40dce6a3c3753732b45197daf3d45bd07a1553543c5732ba74246b46a17b091de9dba0
SSDEEP

24576:EpnicFEkzS6jm0dBFsDL0vSaTX0U5sa3kY2+mO8u:ai2Ek7jNBWDL4ScEU513O+mO9

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2680	is-3DFGD.tmp

Loads dropped DLL 3 IoCs

pid	Process
2168	Notepaper.exe
2680	is-3DFGD.tmp
2680	is-3DFGD.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	Notepaper.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	is-3DFGD.tmp

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2680	is-3DFGD.tmp

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2168 wrote to memory of 2680	2168	Notepaper.exe	30
PID 2168 wrote to memory of 2680	2168	Notepaper.exe	30
PID 2168 wrote to memory of 2680	2168	Notepaper.exe	30
PID 2168 wrote to memory of 2680	2168	Notepaper.exe	30
PID 2168 wrote to memory of 2680	2168	Notepaper.exe	30
PID 2168 wrote to memory of 2680	2168	Notepaper.exe	30
PID 2168 wrote to memory of 2680	2168	Notepaper.exe	30

C:\Users\Admin\AppData\Local\Temp\Notepaper.exe
"C:\Users\Admin\AppData\Local\Temp\Notepaper.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2168
- C:\Users\Admin\AppData\Local\Temp\is-L9QBM.tmp\is-3DFGD.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-L9QBM.tmp\is-3DFGD.tmp" /SL4 $D0150 "C:\Users\Admin\AppData\Local\Temp\Notepaper.exe" 758566 52224
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  PID:2680

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-L9QBM.tmp\is-3DFGD.tmp

Filesize
634KB

MD5
d291acbf9866b8846fe0629e690feb1a

SHA1
293314b11340d798d3c74e2416e2a43f267a25d6

SHA256
ab3e1fa210171e5ed2decc615c9328379ee3d29b55ee0e5d7ef6bece43f583eb

SHA512
320e68a67fdcf13dc25640cf68468abd9e0dc51b647f95277eebbd06c7c5ee298b1f68d4a01deb886979e42cbc3eddf16ac4db18884a96b1535598ba11ba36ed

Download Submit
\Users\Admin\AppData\Local\Temp\is-JUR3C.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/2168-2-0x0000000000401000-0x000000000040A000-memory.dmp

Filesize
36KB

Download
memory/2168-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2168-15-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2680-16-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download