5717bf456130fadb8c206e6affd7ef8ae896b4228a69f9e3b7cd1da2f90be2b1

Analysis

max time kernel
147s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240221-en
resource tags

arch:x64arch:x86image:win10v2004-20240221-enlocale:en-usos:windows10-2004-x64system
submitted
25-02-2024 05:09

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General

Target

a2f9230b9f3cf5d35621bee925a57057.exe
Size

393KB
MD5

a2f9230b9f3cf5d35621bee925a57057
SHA1

4fd726a244348fafe97905a67e3890f8cce605e0
SHA256

5717bf456130fadb8c206e6affd7ef8ae896b4228a69f9e3b7cd1da2f90be2b1
SHA512

e2f3f5d19eee210c1fe04102cd2b01f6a8d388e5c1c47d16c4a952837c4f842867f0e068d4b9fa9c9d09bcc85d4e2b6f19a0fc2131aff607f9923896da7a4f5d
SSDEEP

6144:hGyGar3rO+xX/veMg1r0O4N0hvsrSGbijtL1wtAfmYLfk:h3pXOcvWMg1ro6hvRYijp7fLg

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
100	FNwtkPNqToN2VP3.exe
1120	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/556-0-0x0000000000800000-0x0000000000817000-memory.dmp	upx
behavioral2/files/0x00060000000231ea-6.dat	upx
behavioral2/memory/556-7-0x0000000000800000-0x0000000000817000-memory.dmp	upx
behavioral2/memory/1120-9-0x0000000000130000-0x0000000000147000-memory.dmp	upx
behavioral2/files/0x00030000000226fb-12.dat	upx
behavioral2/files/0x00060000000231e9-29.dat	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"	a2f9230b9f3cf5d35621bee925a57057.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	a2f9230b9f3cf5d35621bee925a57057.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	556	a2f9230b9f3cf5d35621bee925a57057.exe
Token: SeDebugPrivilege	1120	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 556 wrote to memory of 1120	556	a2f9230b9f3cf5d35621bee925a57057.exe	87
PID 556 wrote to memory of 1120	556	a2f9230b9f3cf5d35621bee925a57057.exe	87
PID 556 wrote to memory of 1120	556	a2f9230b9f3cf5d35621bee925a57057.exe	87

C:\Users\Admin\AppData\Local\Temp\a2f9230b9f3cf5d35621bee925a57057.exe
"C:\Users\Admin\AppData\Local\Temp\a2f9230b9f3cf5d35621bee925a57057.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:556
- C:\Users\Admin\AppData\Local\Temp\FNwtkPNqToN2VP3.exe
  C:\Users\Admin\AppData\Local\Temp\FNwtkPNqToN2VP3.exe
  2⤵
  - Executes dropped EXE
  PID:100
- 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:1120

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

Replay Monitor

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Downloads

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

Filesize
383KB

MD5
1cc64b51a9bad8bde82a5dde64744df7

SHA1
057a4562eb563756240a5a798fc71e2544ba1352

SHA256
87ce34f6ccff6c158ffceb18e9c63890ecf6e0ce6b691ca1d00132a6cf283cc4

SHA512
7850d270eb0250f5c1730583bc1be73eb228fe287741f5e19231ea3a01e24c52a90a21d7f0b93c83cc01d1f339f79d9ac137f6f3c20140549f7cec40e333036a

Download Submit
C:\Users\Admin\AppData\Local\Temp\FNwtkPNqToN2VP3.exe

Filesize
393KB

MD5
7b9fb444714b3d152486391d0f159dfe

SHA1
747b18a7426e554b8a2f48945128acd23403c038

SHA256
11a93e757594160a915c536608a531e0f2ee84c1ab04ced6fbcdd0b4baa5c466

SHA512
ec8e3b309d1d4a1b8dbd19c1d7bb92f58bac32cb1e675eae7ae1902f57bbf1f41d1eca6ddcd76e35e04438ef1ac56d2ef9cb448f309192a571cd9ff2763940e3

Download Submit
C:\Users\Admin\AppData\Local\Temp\FNwtkPNqToN2VP3.exe

Filesize
334KB

MD5
f310d4e936b68a5d76b7b808507e99f9

SHA1
6dccf493508f97212688413bec28f86befbff8e2

SHA256
58b7e175725ddf68a7a6c891889daaa3b7d4f90c14bfcff287cb3336cbd7da60

SHA512
daead56dfdd7b4a7a8fabdc6e12144273aae244aa90817d76281e5a7414e3f07ca2761f481bda91a47fc3c1c911ff1783e7421e566e3b3fc59b443de141d9e5d

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/556-0-0x0000000000800000-0x0000000000817000-memory.dmp

Filesize
92KB

Download
memory/556-7-0x0000000000800000-0x0000000000817000-memory.dmp

Filesize
92KB

Download
memory/1120-9-0x0000000000130000-0x0000000000147000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads