f0d40f24bfd2ebd8c636766df143465d512d824d7393e9b3ba6d71049319048a

Analysis

max time kernel
141s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
11-03-2024 18:43

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General

Target

c15546a39ffa17dfcae9dc2b8492d591.exe
Size

30KB
MD5

c15546a39ffa17dfcae9dc2b8492d591
SHA1

766db543c2dd5b68ddc6652903bffb173ff3898d
SHA256

f0d40f24bfd2ebd8c636766df143465d512d824d7393e9b3ba6d71049319048a
SHA512

902883feb852cb3ff5ca31845437ab6b4967de0916186cefd6ed8f698c81e5ad57c028413bda66f17e04885dc907a0ff147e315e8d4fdff92e6e514a6014450e
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEF2+w:SKcR4mjD9r823F2+w

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2632	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/1664-1-0x0000000001340000-0x0000000001357000-memory.dmp	upx
behavioral1/files/0x000d000000014909-9.dat	upx
behavioral1/memory/2632-12-0x0000000000B30000-0x0000000000B47000-memory.dmp	upx
behavioral1/memory/1664-8-0x0000000001340000-0x0000000001357000-memory.dmp	upx
behavioral1/files/0x000b00000001224c-15.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"	c15546a39ffa17dfcae9dc2b8492d591.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	c15546a39ffa17dfcae9dc2b8492d591.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1664	c15546a39ffa17dfcae9dc2b8492d591.exe
Token: SeDebugPrivilege	2632	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1664 wrote to memory of 2632	1664	c15546a39ffa17dfcae9dc2b8492d591.exe	28
PID 1664 wrote to memory of 2632	1664	c15546a39ffa17dfcae9dc2b8492d591.exe	28
PID 1664 wrote to memory of 2632	1664	c15546a39ffa17dfcae9dc2b8492d591.exe	28
PID 1664 wrote to memory of 2632	1664	c15546a39ffa17dfcae9dc2b8492d591.exe	28

C:\Users\Admin\AppData\Local\Temp\c15546a39ffa17dfcae9dc2b8492d591.exe
"C:\Users\Admin\AppData\Local\Temp\c15546a39ffa17dfcae9dc2b8492d591.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1664
- 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:2632

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\X5J75DJVjJzTyqe.exe

Filesize
30KB

MD5
3120abce1421465ebc4db89754f5551b

SHA1
2e2eb9c2350656fde936970137777fac0d2a6096

SHA256
45583a631fb4321a67833b48b165d49b0dd78206968f9bb77a21ba858f7da627

SHA512
f3713eda75c06957fb646441b1b9724cee26fcebe2050d51041da4862cfd2d217655a4020f4e7a055a39a7b13e678e3572937908da02a5bd98b977ad60cfa96c

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/1664-1-0x0000000001340000-0x0000000001357000-memory.dmp

Filesize
92KB

Download
memory/1664-11-0x00000000001B0000-0x00000000001C7000-memory.dmp

Filesize
92KB

Download
memory/1664-8-0x0000000001340000-0x0000000001357000-memory.dmp

Filesize
92KB

Download
memory/1664-20-0x00000000001B0000-0x00000000001C7000-memory.dmp

Filesize
92KB

Download
memory/2632-12-0x0000000000B30000-0x0000000000B47000-memory.dmp

Filesize
92KB

Download

Analysis

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General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads