e5b3730a914f3dca7787bacc4acda251dc9cadb555d0b0ab606c93c91b865a9d

Analysis

max time kernel
143s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 01:04

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General

Target

2288111c7664d929d4d2c9a79cd21e3f.exe
Size

59KB
MD5

2288111c7664d929d4d2c9a79cd21e3f
SHA1

cef5a33244de5aa445cddc98656a5e0d78755b99
SHA256

e5b3730a914f3dca7787bacc4acda251dc9cadb555d0b0ab606c93c91b865a9d
SHA512

26fbeded481d7f9ac0b94b261e7e8066ed3538addff62f8c3b1ac9b0925cffe62db486f4de00a267e82f7e476d0a2f66e9b9adc1141b6d524de2113e6f6a83c0
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFGocAX3LKew369lp2z3G:SKcR4mjD9r823FHKcR4mjD9r823Fr

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
5096	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 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3984-0-0x0000000000160000-0x0000000000177000-memory.dmp	upx
behavioral2/files/0x0007000000023231-6.dat	upx
behavioral2/memory/3984-7-0x0000000000160000-0x0000000000177000-memory.dmp	upx
behavioral2/memory/5096-9-0x00000000005E0000-0x00000000005F7000-memory.dmp	upx
behavioral2/files/0x000300000002275e-12.dat	upx
behavioral2/files/0x000400000001e96f-29.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"	2288111c7664d929d4d2c9a79cd21e3f.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	2288111c7664d929d4d2c9a79cd21e3f.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3984	2288111c7664d929d4d2c9a79cd21e3f.exe
Token: SeDebugPrivilege	5096	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3984 wrote to memory of 5096	3984	2288111c7664d929d4d2c9a79cd21e3f.exe	88
PID 3984 wrote to memory of 5096	3984	2288111c7664d929d4d2c9a79cd21e3f.exe	88
PID 3984 wrote to memory of 5096	3984	2288111c7664d929d4d2c9a79cd21e3f.exe	88

C:\Users\Admin\AppData\Local\Temp\2288111c7664d929d4d2c9a79cd21e3f.exe
"C:\Users\Admin\AppData\Local\Temp\2288111c7664d929d4d2c9a79cd21e3f.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3984
- 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:5096

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
382KB

MD5
526ce77bd028280d70f2001c896209ea

SHA1
39bb38e69f4f10c32f0148a207733cba37629baf

SHA256
06e0a0ade0bc0d8c3f40c192dfdd8f808189095558e99b2ba7acad559c61c9c7

SHA512
11b81751969a1216973009f183b05a7ff620168175e9cb0f5fa92219567e9e99885080bc832e7da645b710c49491c224f83b0bfb19b7def2a982796e22cd6731

Download Submit
C:\Users\Admin\AppData\Local\Temp\io0tKEQIOI4pDCl.exe

Filesize
59KB

MD5
63e0aef769f86dad729df177a9b8ad48

SHA1
f99aebfe2ae60d8521a1e3aebe7e9cb905c8f160

SHA256
6ccc194ae2bde1c558fd61d628a712acf93ece2a90e8f42a6bf741166b7aa05e

SHA512
1b482cd6760bd1be079fa2e60a2293734831cf2413260fcadc72d8484c7c4336609635711c8ccc91f893ac6b1a536d477963a286d8fc0447372e58786c1e20b5

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/3984-0-0x0000000000160000-0x0000000000177000-memory.dmp

Filesize
92KB

Download
memory/3984-7-0x0000000000160000-0x0000000000177000-memory.dmp

Filesize
92KB

Download
memory/5096-9-0x00000000005E0000-0x00000000005F7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads