8ccfeaccd198971498ed64fb3acb6200c3abd368c9ad123ce083c274c94a8f8e

Analysis

max time kernel
162s
max time network
177s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2023 21:21

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General

Target

1cd1140efdf2989d4585f8fbd4dd8979.exe
Size

59KB
MD5

1cd1140efdf2989d4585f8fbd4dd8979
SHA1

39d0df0606fd0b9637862408a61468d8b5babb88
SHA256

8ccfeaccd198971498ed64fb3acb6200c3abd368c9ad123ce083c274c94a8f8e
SHA512

b6e9087c244109954cdd8eb5366501db133f0bebf255584a7145fad63f0cabc5cbf5deeee20af2735f9b8fded1ad56195273c7b745dd244493c7806ea67ceb27
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFGocAX3LKew369lp2z3C:SKcR4mjD9r823FHKcR4mjD9r823F+E

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1928	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/2416-0-0x0000000000520000-0x0000000000537000-memory.dmp	upx
behavioral2/files/0x000600000001e0ce-6.dat	upx
behavioral2/memory/1928-7-0x0000000000390000-0x00000000003A7000-memory.dmp	upx
behavioral2/memory/2416-9-0x0000000000520000-0x0000000000537000-memory.dmp	upx
behavioral2/files/0x0007000000022d41-12.dat	upx
behavioral2/memory/1928-24-0x0000000000390000-0x00000000003A7000-memory.dmp	upx
behavioral2/files/0x000600000002312b-32.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"	1cd1140efdf2989d4585f8fbd4dd8979.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	1cd1140efdf2989d4585f8fbd4dd8979.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2416	1cd1140efdf2989d4585f8fbd4dd8979.exe
Token: SeDebugPrivilege	1928	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 1928	2416	1cd1140efdf2989d4585f8fbd4dd8979.exe	91
PID 2416 wrote to memory of 1928	2416	1cd1140efdf2989d4585f8fbd4dd8979.exe	91
PID 2416 wrote to memory of 1928	2416	1cd1140efdf2989d4585f8fbd4dd8979.exe	91

C:\Users\Admin\AppData\Local\Temp\1cd1140efdf2989d4585f8fbd4dd8979.exe
"C:\Users\Admin\AppData\Local\Temp\1cd1140efdf2989d4585f8fbd4dd8979.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2416
- 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:1928

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
106ef4a5da6e4d7d987c8c332a9c25db

SHA1
831584519ace19b3e9c8e1d52fc3fca8f6c885ff

SHA256
b0cb15370977328eab3eeb5d79e14bd7092256597cb1565eba4ca0717d4caad7

SHA512
169d15be9fadd8890cfc60f7f41bb0bed45d34ee0d7cc829fd6cc1835a763f282d9e4604f23c79b568533197e78fe6c632bd41f5d93cf8a67326e53e231c3499

Download Submit
C:\Users\Admin\AppData\Local\Temp\NEb4HFA7rtbt7Lh.exe

Filesize
59KB

MD5
40c177c9f07211bceb667d1c0771af81

SHA1
ab50a03793aa8a714f18f7dfd5bd850dc097234f

SHA256
ac7a2ed2bd7fae1c3a7a3c49398dc1f00b514408d4e3e7c60c3b0c08173a3a50

SHA512
35582996ec8163790c3eb126c3476c11d8a8761b9017d6433cf684f3d1142030722bdd22bfd0fae771cac95342e728cac4f30012609b56894076d5165f422137

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/1928-7-0x0000000000390000-0x00000000003A7000-memory.dmp

Filesize
92KB

Download
memory/1928-24-0x0000000000390000-0x00000000003A7000-memory.dmp

Filesize
92KB

Download
memory/2416-0-0x0000000000520000-0x0000000000537000-memory.dmp

Filesize
92KB

Download
memory/2416-9-0x0000000000520000-0x0000000000537000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads