a44a9dd0c436830579b5aa841d98b31d1794b06b542e2b54db280be18fd6ab33

Analysis

max time kernel
147s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240319-en
resource tags

arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
submitted
26/03/2024, 16:21

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General

Target

df96ddf23b40e28b7ab0515b5c37e33a.exe
Size

59KB
MD5

df96ddf23b40e28b7ab0515b5c37e33a
SHA1

92a37c0298d2ad7298900fabe947ce3481e47a8a
SHA256

a44a9dd0c436830579b5aa841d98b31d1794b06b542e2b54db280be18fd6ab33
SHA512

625d4f9184f43d985714061430a7b4d8c3cb252c7b9b39d5b26727a860eb7e9fa12cf90806f2fc010ce54ac560eb8845ee4c6759659883db4056e45978f5a794
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFGocAX3LKew369lp2z3+:SKcR4mjD9r823FHKcR4mjD9r823Fb

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4148	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/880-0-0x0000000000B20000-0x0000000000B37000-memory.dmp	upx
behavioral2/files/0x0008000000023386-6.dat	upx
behavioral2/memory/880-7-0x0000000000B20000-0x0000000000B37000-memory.dmp	upx
behavioral2/memory/4148-9-0x0000000000B30000-0x0000000000B47000-memory.dmp	upx
behavioral2/files/0x00050000000226b7-12.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"	df96ddf23b40e28b7ab0515b5c37e33a.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	df96ddf23b40e28b7ab0515b5c37e33a.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	880	df96ddf23b40e28b7ab0515b5c37e33a.exe
Token: SeDebugPrivilege	4148	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 880 wrote to memory of 4148	880	df96ddf23b40e28b7ab0515b5c37e33a.exe	92
PID 880 wrote to memory of 4148	880	df96ddf23b40e28b7ab0515b5c37e33a.exe	92
PID 880 wrote to memory of 4148	880	df96ddf23b40e28b7ab0515b5c37e33a.exe	92

C:\Users\Admin\AppData\Local\Temp\df96ddf23b40e28b7ab0515b5c37e33a.exe
"C:\Users\Admin\AppData\Local\Temp\df96ddf23b40e28b7ab0515b5c37e33a.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:880
- 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:4148

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4060 --field-trial-handle=2260,i,4762972005863767630,9297428255150568035,262144 --variations-seed-version /prefetch:8
1⤵
PID:3896

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
b9510c87a4aa78884fdb0e08d13c5368

SHA1
fc6d1b7e2fbea9f9d322bda6f9a45e888e21a9d6

SHA256
e93e2614f09b9994eb8322131650e90cadca356468b3bdf18a22eee061c9103a

SHA512
9550d2c92b46c09cc895e57656295f7ef3ffbb91d1bc0917b653005b377f55210395edb58b8c637eadcd1de9c3e103415ab458d28fd99097337695533d57da64

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/880-0-0x0000000000B20000-0x0000000000B37000-memory.dmp

Filesize
92KB

Download
memory/880-7-0x0000000000B20000-0x0000000000B37000-memory.dmp

Filesize
92KB

Download
memory/4148-9-0x0000000000B30000-0x0000000000B47000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads