48a524502ab7daa0c8bd420e56c50574566ee8d6e904368a734468572f23c896

Analysis

max time kernel
147s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
06/01/2024, 12:41

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General

Target

46405076352ab893d0523fd2948b68a5.exe
Size

29KB
MD5

46405076352ab893d0523fd2948b68a5
SHA1

f0fe579882b483f66fe9a4471ab4988ade082e58
SHA256

48a524502ab7daa0c8bd420e56c50574566ee8d6e904368a734468572f23c896
SHA512

af53fc640806aa43d2d65bbd48025f185776bf13ebfc0c1d22037778d8514fd14e5e788eeb0fc8ffa55750901a6a05c1244fc960334df0bc8dab888925259f4b
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFHnGy:SKcR4mjD9r823FHl

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4624	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/4232-0-0x0000000000D70000-0x0000000000D87000-memory.dmp	upx
behavioral2/files/0x00080000000231d9-8.dat	upx
behavioral2/memory/4624-9-0x0000000000D30000-0x0000000000D47000-memory.dmp	upx
behavioral2/memory/4232-7-0x0000000000D70000-0x0000000000D87000-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"	46405076352ab893d0523fd2948b68a5.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	46405076352ab893d0523fd2948b68a5.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4232	46405076352ab893d0523fd2948b68a5.exe
Token: SeDebugPrivilege	4624	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4232 wrote to memory of 4624	4232	46405076352ab893d0523fd2948b68a5.exe	91
PID 4232 wrote to memory of 4624	4232	46405076352ab893d0523fd2948b68a5.exe	91
PID 4232 wrote to memory of 4624	4232	46405076352ab893d0523fd2948b68a5.exe	91

C:\Users\Admin\AppData\Local\Temp\46405076352ab893d0523fd2948b68a5.exe
"C:\Users\Admin\AppData\Local\Temp\46405076352ab893d0523fd2948b68a5.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4232
- 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:4624

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
ec2ef6fffe0ec5c8bfd2098f33df863d

SHA1
1bb7cf4d6e37b8a57bcdf43718751a11715c3902

SHA256
63ad65559df351ba9b6b7085d13d8712e74b3142eaae098a8a8dd35bf0255ebe

SHA512
ad926ef79ed710939904c947f4e79c3947c71f1d4943db08df576784f327bccf32125cd0c552c30b8a530d3c20854ab8100d1db96ae9debef16b02ab160c24c6

Download Submit
C:\Users\Admin\AppData\Local\Temp\2LTWzIdYfJhfNd2.exe

Filesize
29KB

MD5
6bd90884f52a096600c1dd6972683191

SHA1
f0222efcb1bf8220368f6e4bb4a109045918b627

SHA256
fd7099f7117ce38cbfd89e2d3b026d881b732753957c276a0d96ab8e91a577ad

SHA512
273dd8a8af167e7fd716a2e084bf472b0b81bf9b8dbfc903dabb4669b71dc41a52bc33b6935c70126cf428dd101fb9e877488bc56f34d69bccdb8ed0f547ef31

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/4232-0-0x0000000000D70000-0x0000000000D87000-memory.dmp

Filesize
92KB

Download
memory/4232-7-0x0000000000D70000-0x0000000000D87000-memory.dmp

Filesize
92KB

Download
memory/4624-9-0x0000000000D30000-0x0000000000D47000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads