19526148f09286a711a3bd7d684e53ad0d362bdf9c949a65098a666b9a7fb69d

Analysis

max time kernel
141s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
10/03/2024, 00:36

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General

Target

bd35bd31236b880606c82e4eef4e47b7.exe
Size

35KB
MD5

bd35bd31236b880606c82e4eef4e47b7
SHA1

78342faaab606f653205a0c212c92f0cc03bcfd9
SHA256

19526148f09286a711a3bd7d684e53ad0d362bdf9c949a65098a666b9a7fb69d
SHA512

14f5007349a167e52023bb185a1a1518348426f7056de61d58364545f0b73dfb0b97a247b4476e98a5041b03718b9482f5a16ba7b636539f6fa67fa78134632d
SSDEEP

768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+IdZ:s9Z3KcR4mjD9r8226+a

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1528	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 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1736-0-0x0000000000330000-0x0000000000347000-memory.dmp	upx
behavioral1/memory/1736-8-0x0000000000330000-0x0000000000347000-memory.dmp	upx
behavioral1/files/0x000a000000012272-11.dat	upx
behavioral1/memory/1528-12-0x00000000009C0000-0x00000000009D7000-memory.dmp	upx
behavioral1/files/0x000b000000012254-14.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"	bd35bd31236b880606c82e4eef4e47b7.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	bd35bd31236b880606c82e4eef4e47b7.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1736	bd35bd31236b880606c82e4eef4e47b7.exe
Token: SeDebugPrivilege	1528	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1736 wrote to memory of 1528	1736	bd35bd31236b880606c82e4eef4e47b7.exe	28
PID 1736 wrote to memory of 1528	1736	bd35bd31236b880606c82e4eef4e47b7.exe	28
PID 1736 wrote to memory of 1528	1736	bd35bd31236b880606c82e4eef4e47b7.exe	28
PID 1736 wrote to memory of 1528	1736	bd35bd31236b880606c82e4eef4e47b7.exe	28

C:\Users\Admin\AppData\Local\Temp\bd35bd31236b880606c82e4eef4e47b7.exe
"C:\Users\Admin\AppData\Local\Temp\bd35bd31236b880606c82e4eef4e47b7.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1736
- 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:1528

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\Temp\dBFxQxMEJoPBCsE.exe

Filesize
35KB

MD5
b582a98a9ea08418691c3e7fccb6ed2b

SHA1
8bd5f4ef35b1867a41b313bf1c22db1794595de3

SHA256
5ca7fbeff04a3b7cf544e674613cb1220f244e4abd0f0b765ceb2330d918b42b

SHA512
a18c2c6383e6270c64d40a6fc17514c1784443d61499fd8de94ec2e2b32b930a129ac277298c1b84af1ad5367533ad3d5e9ef041f14f29402ce144cc48aec4bd

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/1528-12-0x00000000009C0000-0x00000000009D7000-memory.dmp

Filesize
92KB

Download
memory/1736-0-0x0000000000330000-0x0000000000347000-memory.dmp

Filesize
92KB

Download
memory/1736-8-0x0000000000330000-0x0000000000347000-memory.dmp

Filesize
92KB

Download
memory/1736-9-0x00000000000E0000-0x00000000000F7000-memory.dmp

Filesize
92KB

Download
memory/1736-18-0x00000000000E0000-0x00000000000F7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads