8c4840972d3fa611898c849098e8420af9599ddbc8ac3708419613b710388d9a

Analysis

max time kernel
145s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
27/01/2024, 13:54

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General

Target

7a6cba1a259be59b2a986e31375d2a73.exe
Size

29KB
MD5

7a6cba1a259be59b2a986e31375d2a73
SHA1

b6dd516cb9114789fa3f5e025623717597fcb6c9
SHA256

8c4840972d3fa611898c849098e8420af9599ddbc8ac3708419613b710388d9a
SHA512

f75d9fa57dfad9016d28bcb0594c1e5374685a3019cc7c0dc989433b4a490ceb3acba7d39f95d2fa0519845c5ce4bb61930d1d87a31a375392c267f0e2d62edd
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFMl:SKcR4mjD9r823FA

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3084	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/4472-0-0x0000000000690000-0x00000000006A7000-memory.dmp	upx
behavioral2/files/0x0007000000023202-6.dat	upx
behavioral2/memory/3084-9-0x0000000000BF0000-0x0000000000C07000-memory.dmp	upx
behavioral2/memory/4472-7-0x0000000000690000-0x00000000006A7000-memory.dmp	upx
behavioral2/files/0x0006000000022765-12.dat	upx
behavioral2/files/0x00070000000231ff-30.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"	7a6cba1a259be59b2a986e31375d2a73.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	7a6cba1a259be59b2a986e31375d2a73.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4472	7a6cba1a259be59b2a986e31375d2a73.exe
Token: SeDebugPrivilege	3084	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4472 wrote to memory of 3084	4472	7a6cba1a259be59b2a986e31375d2a73.exe	86
PID 4472 wrote to memory of 3084	4472	7a6cba1a259be59b2a986e31375d2a73.exe	86
PID 4472 wrote to memory of 3084	4472	7a6cba1a259be59b2a986e31375d2a73.exe	86

C:\Users\Admin\AppData\Local\Temp\7a6cba1a259be59b2a986e31375d2a73.exe
"C:\Users\Admin\AppData\Local\Temp\7a6cba1a259be59b2a986e31375d2a73.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4472
- 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:3084

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
1cbe3f45979391cbb5b9762b18376d1b

SHA1
176178af24ded86a221f8d6aae33ef09ca1c7915

SHA256
374b25d5e0b17cd013ff190d5ddffd4b9365104988d613c9bb89bfd3310e41d6

SHA512
21637f739090baf3916d04736f769bafe70458ed949ad5dd96085e66d2b1925ab0b057e1ca82841b113a89da5082542eb32cd6360752d616940c282744da4cae

Download Submit
C:\Users\Admin\AppData\Local\Temp\zBQH8OgUnhVg91i.exe

Filesize
29KB

MD5
9241aa7c8ebdd885efaa01c80bf8b28f

SHA1
db63929d5967da66b03eb926107b88dc06c6ec55

SHA256
736cd9a3d09d61b041541115cb5e6ab8beee69c51590428ba3595c4e88f3eb34

SHA512
8cba743d55ad0786916aca5a4244a014cef11fc1cd734e7628fc8519971f45540778eb609f8c9673de8eac546cf28027762d5484bdb494d5b1d1f23c947fc8e4

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/3084-9-0x0000000000BF0000-0x0000000000C07000-memory.dmp

Filesize
92KB

Download
memory/4472-0-0x0000000000690000-0x00000000006A7000-memory.dmp

Filesize
92KB

Download
memory/4472-7-0x0000000000690000-0x00000000006A7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads