98b8d69c66b80ea0dd19edf9f02fabd090d8d0f36a3e1ecdf480c5bba17bafc9

Analysis

max time kernel
145s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2023 19:38

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General

Target

389328c2922d87537aefbde82eff63fa.exe
Size

30KB
MD5

389328c2922d87537aefbde82eff63fa
SHA1

9761aa1cb752c3d908d4c7fb1a99cbdec4cb6111
SHA256

98b8d69c66b80ea0dd19edf9f02fabd090d8d0f36a3e1ecdf480c5bba17bafc9
SHA512

80fcdfb577424531807e4f913fb92b8b06706be8f4670de3f2007c40abc662428b6783a129167542fbcb312db6845a53c5ba96c0204d87dc587c3f58fbca13a6
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFg:SKcR4mjD9r823Fg

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1320	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/2348-0-0x00000000008F0000-0x0000000000907000-memory.dmp	upx
behavioral2/files/0x000c00000002315a-6.dat	upx
behavioral2/memory/1320-8-0x0000000000970000-0x0000000000987000-memory.dmp	upx
behavioral2/memory/2348-7-0x00000000008F0000-0x0000000000907000-memory.dmp	upx
behavioral2/files/0x000300000002276d-12.dat	upx
behavioral2/files/0x000200000001fafe-29.dat	upx
behavioral2/memory/1320-32-0x0000000000970000-0x0000000000987000-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"	389328c2922d87537aefbde82eff63fa.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	389328c2922d87537aefbde82eff63fa.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2348	389328c2922d87537aefbde82eff63fa.exe
Token: SeDebugPrivilege	1320	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 1320	2348	389328c2922d87537aefbde82eff63fa.exe	90
PID 2348 wrote to memory of 1320	2348	389328c2922d87537aefbde82eff63fa.exe	90
PID 2348 wrote to memory of 1320	2348	389328c2922d87537aefbde82eff63fa.exe	90

C:\Users\Admin\AppData\Local\Temp\389328c2922d87537aefbde82eff63fa.exe
"C:\Users\Admin\AppData\Local\Temp\389328c2922d87537aefbde82eff63fa.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2348
- 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:1320

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
352KB

MD5
053966879ac49206d0c25f5e472d03c7

SHA1
ebcfe3fe1d4fa9cd504ffe083ac2a0c9dabfa229

SHA256
e793eb4c8dd015d2181ec702179d1dd93e7f40342867e348f8e2109ba6539aaf

SHA512
dda0aec454726b37cd5a05a50047e9fe1017f9675389587c42fc790a00602fe4245805d98ab66952cdfe5a51c6ed26029e1cbb9df03a02725ac7e2dd1cd05b75

Download Submit
C:\Users\Admin\AppData\Local\Temp\b2IDXmOsJne6kgr.exe

Filesize
30KB

MD5
1924b17e5abb8f503ff16a578c486ad7

SHA1
2386f250a08b17398555d75e61c4fffe5aff0584

SHA256
1c5a3e07fa3fa04156b08c9e10f71a306524458739104691180f0072929e913d

SHA512
a57f8a6b69ba62138f1d7f3e1062f0c7779bdf9a515a6e75a9d4774e4bcd16078538655436f429dc51e217939ec4ef41da803717690d4e510d97a49453a87585

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/1320-8-0x0000000000970000-0x0000000000987000-memory.dmp

Filesize
92KB

Download
memory/1320-32-0x0000000000970000-0x0000000000987000-memory.dmp

Filesize
92KB

Download
memory/2348-0-0x00000000008F0000-0x0000000000907000-memory.dmp

Filesize
92KB

Download
memory/2348-7-0x00000000008F0000-0x0000000000907000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads