fd53b6ea761e55a4559804716741d58da141f9a009efd1a4b64b551a8fd43816

Analysis

max time kernel
140s
max time network
123s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
29/12/2023, 19:41

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General

Target

02111a64fa9e214967e4d9a5c239779c.exe
Size

116KB
MD5

02111a64fa9e214967e4d9a5c239779c
SHA1

900b2f3f23ee47f789302afde1b0806658035a2d
SHA256

fd53b6ea761e55a4559804716741d58da141f9a009efd1a4b64b551a8fd43816
SHA512

e4219220eccd66f33af084c964eac357c884b4ddf4caaf8b26050b2d3f3a582bd163bccc473f75e7e8db1e9252c53bd3e52d7082bf454685820edf9384e2b983
SSDEEP

3072:SKcWmjRrz3qrCILVhucelHlTKemmq+by8:hGqm4hucCvq+L

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2140	1K4DOPncfFBCt8o.exe
1448	CTS.exe

Loads dropped DLL 1 IoCs

pid	Process
2004	02111a64fa9e214967e4d9a5c239779c.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 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2004-0-0x0000000001280000-0x0000000001297000-memory.dmp	upx
behavioral1/memory/2004-12-0x0000000001280000-0x0000000001297000-memory.dmp	upx
behavioral1/memory/1448-15-0x0000000000D80000-0x0000000000D97000-memory.dmp	upx
behavioral1/files/0x000b000000014abe-14.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"	02111a64fa9e214967e4d9a5c239779c.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	02111a64fa9e214967e4d9a5c239779c.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	02111a64fa9e214967e4d9a5c239779c.exe
Token: SeDebugPrivilege	1448	CTS.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 2140	2004	02111a64fa9e214967e4d9a5c239779c.exe	16
PID 2004 wrote to memory of 2140	2004	02111a64fa9e214967e4d9a5c239779c.exe	16
PID 2004 wrote to memory of 2140	2004	02111a64fa9e214967e4d9a5c239779c.exe	16
PID 2004 wrote to memory of 2140	2004	02111a64fa9e214967e4d9a5c239779c.exe	16
PID 2004 wrote to memory of 1448	2004	02111a64fa9e214967e4d9a5c239779c.exe	18
PID 2004 wrote to memory of 1448	2004	02111a64fa9e214967e4d9a5c239779c.exe	18
PID 2004 wrote to memory of 1448	2004	02111a64fa9e214967e4d9a5c239779c.exe	18
PID 2004 wrote to memory of 1448	2004	02111a64fa9e214967e4d9a5c239779c.exe	18

C:\Users\Admin\AppData\Local\Temp\02111a64fa9e214967e4d9a5c239779c.exe
"C:\Users\Admin\AppData\Local\Temp\02111a64fa9e214967e4d9a5c239779c.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Users\Admin\AppData\Local\Temp\1K4DOPncfFBCt8o.exe
  C:\Users\Admin\AppData\Local\Temp\1K4DOPncfFBCt8o.exe
  2⤵
  - Executes dropped EXE
  PID:2140
- 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:1448

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:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
\Users\Admin\AppData\Local\Temp\1K4DOPncfFBCt8o.exe

Filesize
87KB

MD5
015207664f86b0d334146d7bc7551a0f

SHA1
b466beca074c3c4a500bfa00fd691cf0fe300d8c

SHA256
3212cacc4d669f381ad1048e43726ec2841de32135438992c55f792bf03beafc

SHA512
6ced0d294fd9c330cab20739336c6cd4c1e202d521fd41c6fd6bdfe7e720247c84ac10a7e25855d3cc9b08f2d9251798eb52383527a9363c5126a6b205ff0657

Download Submit
memory/1448-15-0x0000000000D80000-0x0000000000D97000-memory.dmp

Filesize
92KB

Download
memory/2004-0-0x0000000001280000-0x0000000001297000-memory.dmp

Filesize
92KB

Download
memory/2004-12-0x0000000001280000-0x0000000001297000-memory.dmp

Filesize
92KB

Download
memory/2004-8-0x0000000000D80000-0x0000000000D97000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads