2f1cee0a88e185c31a13dd6b46966c004bf7def05c9824cd986a887866841e8f

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27/02/2024, 18:44

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General

Target

a9e26a99a7784c1988413107f3ff42d8.exe
Size

59KB
MD5

a9e26a99a7784c1988413107f3ff42d8
SHA1

5012ae45b4be77386b0b10db196ac6079f5d912b
SHA256

2f1cee0a88e185c31a13dd6b46966c004bf7def05c9824cd986a887866841e8f
SHA512

a823769abe546346162c88cfbdd7bafe854d6952a55db3fe57810d4f9be9c40ef84f77337a9c8bc5fbf07a5cb8f8ec4541124f385907340b3418772928206ab5
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFGocAX3LKew369lp2z3h:SKcR4mjD9r823FHKcR4mjD9r823FK

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3996	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/1624-0-0x0000000000230000-0x0000000000247000-memory.dmp	upx
behavioral2/files/0x000a0000000231aa-6.dat	upx
behavioral2/memory/3996-9-0x0000000000720000-0x0000000000737000-memory.dmp	upx
behavioral2/memory/1624-7-0x0000000000230000-0x0000000000247000-memory.dmp	upx
behavioral2/files/0x000600000002275e-12.dat	upx
behavioral2/files/0x000400000001e980-30.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"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	a9e26a99a7784c1988413107f3ff42d8.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	a9e26a99a7784c1988413107f3ff42d8.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1624	a9e26a99a7784c1988413107f3ff42d8.exe
Token: SeDebugPrivilege	3996	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1624 wrote to memory of 3996	1624	a9e26a99a7784c1988413107f3ff42d8.exe	90
PID 1624 wrote to memory of 3996	1624	a9e26a99a7784c1988413107f3ff42d8.exe	90
PID 1624 wrote to memory of 3996	1624	a9e26a99a7784c1988413107f3ff42d8.exe	90

C:\Users\Admin\AppData\Local\Temp\a9e26a99a7784c1988413107f3ff42d8.exe
"C:\Users\Admin\AppData\Local\Temp\a9e26a99a7784c1988413107f3ff42d8.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1624
- 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:3996

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
380KB

MD5
1193c285ec2a352b0505747665482fcb

SHA1
f9b01acf8014f56e43e07e98007b3184a91c6c24

SHA256
2894c71d9210a8d985abbfd0ccf35208a9d44b00c9982bd21cf3e11f1778da33

SHA512
7127a583bbefbee5ecae06e53c482559aee4bdad870dd41b6fe69399260fa5151b517106beb8e05ab2736d1ed3c2865ca49ec285700c8ebb189324f112ed246f

Download Submit
C:\Users\Admin\AppData\Local\Temp\DX7zyHHQVIPEKLa.exe

Filesize
59KB

MD5
dd9dd010865528870a2091753d5815ea

SHA1
2ec78a00070bc2192aa8b3cf50b279e9e3da3665

SHA256
b824c9bc532411a3114fc639f867b513a05887b8841e65123a4990423f5db534

SHA512
9e05849a72ea9e919aa838beb5bf926f92640e3ec68ac154a96406662761a4412f942a7526b995879c12cd26c865ecdb1fe3b1620087341b6c659b18a0beb4b9

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/1624-0-0x0000000000230000-0x0000000000247000-memory.dmp

Filesize
92KB

Download
memory/1624-7-0x0000000000230000-0x0000000000247000-memory.dmp

Filesize
92KB

Download
memory/3996-9-0x0000000000720000-0x0000000000737000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads