a061a93f1a117c526750a22d00790daeb7abb816a1a617985246736956fc56f4

Analysis

max time kernel
6s
max time network
151s
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, 22:36

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General

Target

1ea376232df49097f771febfa371c6e2.exe
Size

85KB
MD5

1ea376232df49097f771febfa371c6e2
SHA1

70e08963947a2976e741e5c0e42d7e885ec03761
SHA256

a061a93f1a117c526750a22d00790daeb7abb816a1a617985246736956fc56f4
SHA512

f15f1644a9842f938da879a4a1a2d359b1878896c22cf9b255acabc313b26c3d57a70e0dc8c4eb63040dc8d42816df72994608f779b24ae167a44a1f76bb426b
SSDEEP

1536:SKcR4mjD9r823Fgc6YAFNrv6b9aTsMDynm6AHi9phi:SKcWmjRrz36YYNToMynKHi9u

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2588	Ik84BBfZCyHOrlo.exe
316	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 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3280-0-0x0000000000EF0000-0x0000000000F07000-memory.dmp	upx
behavioral2/memory/3280-7-0x0000000000EF0000-0x0000000000F07000-memory.dmp	upx
behavioral2/memory/316-9-0x00000000008E0000-0x00000000008F7000-memory.dmp	upx
behavioral2/files/0x000700000002323b-8.dat	upx
behavioral2/files/0x000700000002323b-6.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"	1ea376232df49097f771febfa371c6e2.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	1ea376232df49097f771febfa371c6e2.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3280	1ea376232df49097f771febfa371c6e2.exe
Token: SeDebugPrivilege	316	CTS.exe
Token: SeBackupPrivilege	4972	dw20.exe
Token: SeBackupPrivilege	4972	dw20.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3280 wrote to memory of 2588	3280	1ea376232df49097f771febfa371c6e2.exe	21
PID 3280 wrote to memory of 2588	3280	1ea376232df49097f771febfa371c6e2.exe	21
PID 3280 wrote to memory of 316	3280	1ea376232df49097f771febfa371c6e2.exe	19
PID 3280 wrote to memory of 316	3280	1ea376232df49097f771febfa371c6e2.exe	19
PID 3280 wrote to memory of 316	3280	1ea376232df49097f771febfa371c6e2.exe	19
PID 2588 wrote to memory of 4972	2588	Ik84BBfZCyHOrlo.exe	95
PID 2588 wrote to memory of 4972	2588	Ik84BBfZCyHOrlo.exe	95

C:\Users\Admin\AppData\Local\Temp\1ea376232df49097f771febfa371c6e2.exe
"C:\Users\Admin\AppData\Local\Temp\1ea376232df49097f771febfa371c6e2.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3280
- 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:316
- C:\Users\Admin\AppData\Local\Temp\Ik84BBfZCyHOrlo.exe
  C:\Users\Admin\AppData\Local\Temp\Ik84BBfZCyHOrlo.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2588
- - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
    dw20.exe -x -s 816
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    PID:4972

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\Temp\Ik84BBfZCyHOrlo.exe

Filesize
56KB

MD5
e115521ba14b75f53dcdff087ec6898f

SHA1
87103a892bb514a93d485fba221bacb9da3aae25

SHA256
59b284d0ad4c2634938e70fae67d9048bd98422d052fbd745a9b80b5fae7ae29

SHA512
ab3d097bcf11bf7327a28124052b210f5fb13b9bfb9b7376cae1ba5c30182a330506935288a7fe06b7e3fdd82b57f5c31638f1c301738342819c772b346fa35a

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/316-9-0x00000000008E0000-0x00000000008F7000-memory.dmp

Filesize
92KB

Download
memory/2588-27-0x00007FFD5BA10000-0x00007FFD5C3B1000-memory.dmp

Filesize
9.6MB

Download
memory/2588-28-0x00007FFD5BA10000-0x00007FFD5C3B1000-memory.dmp

Filesize
9.6MB

Download
memory/2588-29-0x0000000001690000-0x00000000016A0000-memory.dmp

Filesize
64KB

Download
memory/2588-39-0x00007FFD5BA10000-0x00007FFD5C3B1000-memory.dmp

Filesize
9.6MB

Download
memory/3280-0-0x0000000000EF0000-0x0000000000F07000-memory.dmp

Filesize
92KB

Download
memory/3280-7-0x0000000000EF0000-0x0000000000F07000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads