64a29f5d3388a1adf762a87368a0843a9618df7f7d8a21d3357c73834bb9c1b1

Analysis

max time kernel
147s
max time network
90s
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 02:10

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General

Target

45033d03c732567b35288ed2d3198552.exe
Size

97KB
MD5

45033d03c732567b35288ed2d3198552
SHA1

f9bc6f7dc2f0544b4fcedaba86dfbbea35e459d9
SHA256

64a29f5d3388a1adf762a87368a0843a9618df7f7d8a21d3357c73834bb9c1b1
SHA512

44543b91153990f58ea301be76ef4e330ac0d07f8e5b89f6861fd37b3a26635b9bd8101b0a3bb1333128fd9b1e765f8446fc5ede96f7bfb099a9e8af35eb4cdc
SSDEEP

1536:SKcR4mjD9r823F8IjZVa5pFkj3m65RP1hGtkMqFukSCWLQZxqKgOzHslLVk:SKcWmjRrz3Sksp6jfTj1uLQZxYLy

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
640	d3zrwVJzVavDFUX.exe
4812	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/1996-0-0x00000000003B0000-0x00000000003C7000-memory.dmp	upx
behavioral2/memory/4812-9-0x0000000000050000-0x0000000000067000-memory.dmp	upx
behavioral2/files/0x000c000000023148-8.dat	upx
behavioral2/memory/1996-7-0x00000000003B0000-0x00000000003C7000-memory.dmp	upx
behavioral2/files/0x0004000000022758-13.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"	45033d03c732567b35288ed2d3198552.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	CTS.exe
File created	C:\Windows\CTS.exe	45033d03c732567b35288ed2d3198552.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1996	45033d03c732567b35288ed2d3198552.exe
Token: SeDebugPrivilege	4812	CTS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 640	1996	45033d03c732567b35288ed2d3198552.exe	14
PID 1996 wrote to memory of 640	1996	45033d03c732567b35288ed2d3198552.exe	14
PID 1996 wrote to memory of 640	1996	45033d03c732567b35288ed2d3198552.exe	14
PID 1996 wrote to memory of 4812	1996	45033d03c732567b35288ed2d3198552.exe	19
PID 1996 wrote to memory of 4812	1996	45033d03c732567b35288ed2d3198552.exe	19
PID 1996 wrote to memory of 4812	1996	45033d03c732567b35288ed2d3198552.exe	19

C:\Users\Admin\AppData\Local\Temp\d3zrwVJzVavDFUX.exe
C:\Users\Admin\AppData\Local\Temp\d3zrwVJzVavDFUX.exe
1⤵
- Executes dropped EXE
PID:640

C:\Windows\CTS.exe
"C:\Windows\CTS.exe"
1⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:4812

C:\Users\Admin\AppData\Local\Temp\45033d03c732567b35288ed2d3198552.exe
"C:\Users\Admin\AppData\Local\Temp\45033d03c732567b35288ed2d3198552.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
34KB

MD5
19a08ed850c78250f3fb7490cde547ca

SHA1
1acc1569cb694f280ec17a6c91014b9725aece69

SHA256
39f10f97bd50d47cf548fc40a6f82a39afcb53c9871033e9703dc9ae38d7badb

SHA512
15a14e8ca1989e131314876686ce55734647e79abb8286d09ca02f36ce32aa84d6a592583bad8e4ae538121bebddd2be2a98da6d4d5544958fc50425018ecb6c

Download Submit
C:\Users\Admin\AppData\Local\Temp\d3zrwVJzVavDFUX.exe

Filesize
67KB

MD5
50e9d1438f14e3e345db6b9f15473be0

SHA1
20b511d23f4df169b10d6cd022e90b3441af038a

SHA256
6852f4faa2d0ae8be06c198c40875c9ecc466c2da9f6899b6d1f80e7df80b5e9

SHA512
65dcd5c3ee197727beef8c5bfef4073d9ed93c6662827721310dcbc0ea02c8334dbe42a47a2aee1cbe35a2943d6518c93a1d77325e58ad74cb93828b6c691ea9

Download Submit
C:\Users\Admin\AppData\Local\Temp\d3zrwVJzVavDFUX.exe

Filesize
50KB

MD5
85c5b898de52b0881623bceb6c44aaef

SHA1
4ada0da9cdcc0ea10b10edee091b4c38cf7ab4da

SHA256
f6f723af41e552d04fb0e77eabb7187b8869f8c4eb472aad9bf897f0aac1fa68

SHA512
59403cbf3ab96d06b5cfb361131cd717e2d13a7f7f95a50ad3110e3cfa92ab75f6be3ce629887901a167c0807c22ab457c6abe9fa2511299fe40eb4708d97de5

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/1996-0-0x00000000003B0000-0x00000000003C7000-memory.dmp

Filesize
92KB

Download
memory/1996-7-0x00000000003B0000-0x00000000003C7000-memory.dmp

Filesize
92KB

Download
memory/4812-9-0x0000000000050000-0x0000000000067000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads