0be061c58b20542cc177fcc99a50f2b577a162e0e15bbe0d61fe24fbf02ad33c

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
05-01-2024 06:18

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General

Target

42f7a91e9266e3661b5f777ab66c5805.exe
Size

123KB
MD5

42f7a91e9266e3661b5f777ab66c5805
SHA1

c04d12c659a33119b2ef3280901606507bd64078
SHA256

0be061c58b20542cc177fcc99a50f2b577a162e0e15bbe0d61fe24fbf02ad33c
SHA512

84db63b68ef7c2acce001044aac61ed084cea3b7d83842f8655ccd3c7872f401e6af1acb81ca6a215f3e74938ad0418b0a6186ce9626c107d324235c0b8dd93f
SSDEEP

3072:SKcWmjRrz3ZKcWmjRrz3ES29nqPIEhRCHCPFKv74CIdvJkxf:hGyG32qIEhRZzCIdhkxf

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4332	PZjMpOaghR5mtYi.exe
2840	CTS.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3524-0-0x0000000000080000-0x0000000000097000-memory.dmp	upx
behavioral2/memory/3524-8-0x0000000000080000-0x0000000000097000-memory.dmp	upx
behavioral2/files/0x0006000000023228-7.dat	upx
behavioral2/memory/2840-9-0x0000000000FC0000-0x0000000000FD7000-memory.dmp	upx
behavioral2/files/0x000300000001e713-13.dat	upx
behavioral2/memory/2840-31-0x0000000000FC0000-0x0000000000FD7000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	42f7a91e9266e3661b5f777ab66c5805.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	42f7a91e9266e3661b5f777ab66c5805.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3524	42f7a91e9266e3661b5f777ab66c5805.exe
Token: SeDebugPrivilege	2840	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3524 wrote to memory of 4332	3524	42f7a91e9266e3661b5f777ab66c5805.exe	87
PID 3524 wrote to memory of 4332	3524	42f7a91e9266e3661b5f777ab66c5805.exe	87
PID 3524 wrote to memory of 4332	3524	42f7a91e9266e3661b5f777ab66c5805.exe	87
PID 3524 wrote to memory of 2840	3524	42f7a91e9266e3661b5f777ab66c5805.exe	89
PID 3524 wrote to memory of 2840	3524	42f7a91e9266e3661b5f777ab66c5805.exe	89
PID 3524 wrote to memory of 2840	3524	42f7a91e9266e3661b5f777ab66c5805.exe	89

C:\Users\Admin\AppData\Local\Temp\42f7a91e9266e3661b5f777ab66c5805.exe
"C:\Users\Admin\AppData\Local\Temp\42f7a91e9266e3661b5f777ab66c5805.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3524
- C:\Users\Admin\AppData\Local\Temp\PZjMpOaghR5mtYi.exe
  C:\Users\Admin\AppData\Local\Temp\PZjMpOaghR5mtYi.exe
  2⤵
  - Executes dropped EXE
  PID:4332
- C:\Windows\CTS.exe
  "C:\Windows\CTS.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:2840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
382KB

MD5
5e541eca58b0309530f97635fa67bd43

SHA1
5b3eeb62a2a1082d0f03cf22ed857a6539176d07

SHA256
0ea383f5b9c179ae1f87d2a782f247031c437194d7cf7664572c23d923f73a19

SHA512
5d518633f50b2f28c3203f3be0abe0f4e319d318563891d61ccd9eda919c7fa7dd44389012894927e16706c0b5a11dca0e38079e9dab71d42c2a0de3fde91e3a

Download Submit
C:\Users\Admin\AppData\Local\Temp\PZjMpOaghR5mtYi.exe

Filesize
64KB

MD5
a32a382b8a5a906e03a83b4f3e5b7a9b

SHA1
11e2bdd0798761f93cce363329996af6c17ed796

SHA256
75f12ea2f30d9c0d872dade345f30f562e6d93847b6a509ba53beec6d0b2c346

SHA512
ec87dd957be21b135212454646dcabdd7ef9442cf714e2c1f6b42b81f0c3fa3b1875bde9a8b538e8a0aa2190225649c29e9ed0f25176e7659e55e422dd4efe4c

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/2840-9-0x0000000000FC0000-0x0000000000FD7000-memory.dmp

Filesize
92KB

Download
memory/2840-31-0x0000000000FC0000-0x0000000000FD7000-memory.dmp

Filesize
92KB

Download
memory/3524-0-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download
memory/3524-8-0x0000000000080000-0x0000000000097000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads