7f9fef793ee0dfd8d00428fff41054523553a147c3e73e5b68003a16d7d0e600

Analysis

max time kernel
143s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
17-09-2023 11:59

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General

Target

793f13601348fb65945f8dcafef86579_JC.exe
Size

62KB
MD5

793f13601348fb65945f8dcafef86579
SHA1

13afece724613a522d5efdc2c8e713f5140a2363
SHA256

7f9fef793ee0dfd8d00428fff41054523553a147c3e73e5b68003a16d7d0e600
SHA512

9d18976c41e66a933a179bb550e15b1998128886bbda5ff75b8c2bddaf247ff9c9729d815c2403d891c46980ac319a4e043adf1517f9b1e2e2897af6fbb9bf12
SSDEEP

1536:tKcR4mjD9r823FHbTPlRfJEVXXBWV1ansRrDSZM1O9ha:tKcWmjRrz3vROVXBS4nsfO9Q

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3140	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 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4640-0-0x0000000000680000-0x000000000069E000-memory.dmp	upx
behavioral2/files/0x00080000000231ea-6.dat	upx
behavioral2/memory/3140-7-0x00000000008E0000-0x00000000008FE000-memory.dmp	upx
behavioral2/memory/4640-9-0x0000000000680000-0x000000000069E000-memory.dmp	upx
behavioral2/files/0x00080000000231ea-8.dat	upx
behavioral2/files/0x000b00000002279c-12.dat	upx
behavioral2/files/0x001000000001e746-29.dat	upx
behavioral2/memory/3140-31-0x00000000008E0000-0x00000000008FE000-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"	793f13601348fb65945f8dcafef86579_JC.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	793f13601348fb65945f8dcafef86579_JC.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4640	793f13601348fb65945f8dcafef86579_JC.exe
Token: SeDebugPrivilege	3140	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4640 wrote to memory of 3140	4640	793f13601348fb65945f8dcafef86579_JC.exe	85
PID 4640 wrote to memory of 3140	4640	793f13601348fb65945f8dcafef86579_JC.exe	85
PID 4640 wrote to memory of 3140	4640	793f13601348fb65945f8dcafef86579_JC.exe	85

C:\Users\Admin\AppData\Local\Temp\793f13601348fb65945f8dcafef86579_JC.exe
"C:\Users\Admin\AppData\Local\Temp\793f13601348fb65945f8dcafef86579_JC.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4640
- 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:3140

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
380KB

MD5
2f667cb7a57a7436cc24c7aa9626ae0e

SHA1
9296436a1ada459ccd93e54ce43f92bfcf3d21e8

SHA256
7106658433961bfd9bcec6e917a6a06b31f377f4bb8a18c4e92acfc87e6dfc17

SHA512
88171819bd21f6d7ced2a6068498beb500288325f1e5459b0a5e89e4076289ac626b3e21b5bcec34e4dc6ee3ce6053cfb8e9d074c292a7e8664b613f23a3d5e3

Download Submit
C:\Users\Admin\AppData\Local\Temp\gUn3ZsCBBQkAL33.exe

Filesize
62KB

MD5
50ad4b75bcb7e4b36789250cb4eda120

SHA1
e466e217aa9067b576ebd3d39be2bf9b3244accf

SHA256
518309cb302e7d635f0ab4ad6ae24d8309526b8a98332c1efab7b0d55fddeb9e

SHA512
0fa40d2d1a2eebb5d096caed81e0c9846d0fe567183b3021c4d18347c2b7d15394d2644a2a53d26a6e1a820a7a9296f9bd5df03733ab54c11b6ba069c65c8896

Download Submit
C:\Windows\CTS.exe

Filesize
58KB

MD5
35b2c34c73c1d56049bd125a8e97cb5c

SHA1
28e4ab8932111afff0d84a56ee6c3255ae019855

SHA256
859ce0d34a212a4195d63015e6bf9c227c369b9bd781b3037c2d09f18979886a

SHA512
9f6b889831359d38c28aceded939486804560ec6289d059a2281191bf805711efe8516ecc991f26fe25b76f18148768ba2dd33b692a92f27ea71fd3b2c5efbc3

Download Submit
C:\Windows\CTS.exe

Filesize
58KB

MD5
35b2c34c73c1d56049bd125a8e97cb5c

SHA1
28e4ab8932111afff0d84a56ee6c3255ae019855

SHA256
859ce0d34a212a4195d63015e6bf9c227c369b9bd781b3037c2d09f18979886a

SHA512
9f6b889831359d38c28aceded939486804560ec6289d059a2281191bf805711efe8516ecc991f26fe25b76f18148768ba2dd33b692a92f27ea71fd3b2c5efbc3

Download Submit
memory/3140-7-0x00000000008E0000-0x00000000008FE000-memory.dmp

Filesize
120KB

Download
memory/3140-31-0x00000000008E0000-0x00000000008FE000-memory.dmp

Filesize
120KB

Download
memory/4640-0-0x0000000000680000-0x000000000069E000-memory.dmp

Filesize
120KB

Download
memory/4640-9-0x0000000000680000-0x000000000069E000-memory.dmp

Filesize
120KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads