19526148f09286a711a3bd7d684e53ad0d362bdf9c949a65098a666b9a7fb69d

Analysis

max time kernel
142s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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
1900	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 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4908-0-0x00000000004F0000-0x0000000000507000-memory.dmp	upx
behavioral2/memory/4908-7-0x00000000004F0000-0x0000000000507000-memory.dmp	upx
behavioral2/files/0x000c00000002304c-6.dat	upx
behavioral2/memory/1900-9-0x00000000002B0000-0x00000000002C7000-memory.dmp	upx
behavioral2/files/0x000200000002276f-12.dat	upx
behavioral2/files/0x000400000001e980-29.dat	upx
behavioral2/memory/1900-32-0x00000000002B0000-0x00000000002C7000-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"	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	CTS.exe
File created	C:\Windows\CTS.exe	bd35bd31236b880606c82e4eef4e47b7.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4908	bd35bd31236b880606c82e4eef4e47b7.exe
Token: SeDebugPrivilege	1900	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4908 wrote to memory of 1900	4908	bd35bd31236b880606c82e4eef4e47b7.exe	87
PID 4908 wrote to memory of 1900	4908	bd35bd31236b880606c82e4eef4e47b7.exe	87
PID 4908 wrote to memory of 1900	4908	bd35bd31236b880606c82e4eef4e47b7.exe	87

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:4908
- 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:1900

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
358KB

MD5
45d1c06e08d74cdf09dbd7d0c4e8d281

SHA1
38fc0f8395180bbbddb4fed0deaead5f6cf2d635

SHA256
73c393ca095913916e1055675e4fe53c51e3111c6a507581e2eb451a3f5dda15

SHA512
f94002e6280dc6bbed70a912db69d190f1316f2d2afdf585693a7fbc09e87151eaba17ce8da327de08ecc2c280e6fb9650a1c4beae3cfc1773b10c48b8d7f20a

Download Submit
C:\Users\Admin\AppData\Local\Temp\90CyRwhfurDc915.exe

Filesize
35KB

MD5
12f0163fdcd3ff7c9633c71760e67520

SHA1
13ea98e5763096741e879488aad04aa225651ced

SHA256
f6affc5a9062a04d4e4f707363e3f43ac189711c9d3388dec148fab131ba846e

SHA512
deb7dac99e2df3211e5424d051ccd920a950d3276c4d15910039123edd2121b979ae3f6b90f0334fcf8ae4f3c9cdfb6a20541dac5afd441eb71b1bb5197c753a

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/1900-9-0x00000000002B0000-0x00000000002C7000-memory.dmp

Filesize
92KB

Download
memory/1900-32-0x00000000002B0000-0x00000000002C7000-memory.dmp

Filesize
92KB

Download
memory/4908-0-0x00000000004F0000-0x0000000000507000-memory.dmp

Filesize
92KB

Download
memory/4908-7-0x00000000004F0000-0x0000000000507000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads