a44a9dd0c436830579b5aa841d98b31d1794b06b542e2b54db280be18fd6ab33

Analysis

max time kernel
140s
max time network
121s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
26/03/2024, 16:21

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General

Target

df96ddf23b40e28b7ab0515b5c37e33a.exe
Size

59KB
MD5

df96ddf23b40e28b7ab0515b5c37e33a
SHA1

92a37c0298d2ad7298900fabe947ce3481e47a8a
SHA256

a44a9dd0c436830579b5aa841d98b31d1794b06b542e2b54db280be18fd6ab33
SHA512

625d4f9184f43d985714061430a7b4d8c3cb252c7b9b39d5b26727a860eb7e9fa12cf90806f2fc010ce54ac560eb8845ee4c6759659883db4056e45978f5a794
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFGocAX3LKew369lp2z3+:SKcR4mjD9r823FHKcR4mjD9r823Fb

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1724	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/1924-0-0x0000000000270000-0x0000000000287000-memory.dmp	upx
behavioral1/files/0x000b000000015bb9-7.dat	upx
behavioral1/memory/1924-8-0x0000000000270000-0x0000000000287000-memory.dmp	upx
behavioral1/memory/1724-12-0x0000000000860000-0x0000000000877000-memory.dmp	upx
behavioral1/files/0x000b000000012255-14.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"	df96ddf23b40e28b7ab0515b5c37e33a.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	df96ddf23b40e28b7ab0515b5c37e33a.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1924	df96ddf23b40e28b7ab0515b5c37e33a.exe
Token: SeDebugPrivilege	1724	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1924 wrote to memory of 1724	1924	df96ddf23b40e28b7ab0515b5c37e33a.exe	28
PID 1924 wrote to memory of 1724	1924	df96ddf23b40e28b7ab0515b5c37e33a.exe	28
PID 1924 wrote to memory of 1724	1924	df96ddf23b40e28b7ab0515b5c37e33a.exe	28
PID 1924 wrote to memory of 1724	1924	df96ddf23b40e28b7ab0515b5c37e33a.exe	28

C:\Users\Admin\AppData\Local\Temp\df96ddf23b40e28b7ab0515b5c37e33a.exe
"C:\Users\Admin\AppData\Local\Temp\df96ddf23b40e28b7ab0515b5c37e33a.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1924
- 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:1724

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\StGY4CgUc2EDxcF.exe

Filesize
59KB

MD5
e4a9d2863df598f69310a9fc87295577

SHA1
194522f075f98875582a75f4a4e7e3709b13267a

SHA256
c546c618778f3a1783e2a5d7d978a29e2d5f3d04465ad9037c58b7b3eee519e5

SHA512
1b1cfaf2ee070063b6f2bacea80ed60a8510a5f5a798b73f5b5fba00d69e09bd4b5d3830ced55dd6ee1e40e9bcf00c5de10a4f22d2ca9bc911bc28224260c8e6

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/1724-12-0x0000000000860000-0x0000000000877000-memory.dmp

Filesize
92KB

Download
memory/1924-0-0x0000000000270000-0x0000000000287000-memory.dmp

Filesize
92KB

Download
memory/1924-11-0x00000000000E0000-0x00000000000F7000-memory.dmp

Filesize
92KB

Download
memory/1924-8-0x0000000000270000-0x0000000000287000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads