751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d

General

Target

751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe
Size

27KB
MD5

997cfd640be6243a2add974d9bf9e105
SHA1

471275f0c3420076a77be13f17fb408f75409ce2
SHA256

751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d
SHA512

67099eebd89075b80cd3482c7a29d9b1726a90816da1bfea1ecd1c08915a2f3e9d8ddd142aac1bff73f9aed2a59a59c0bb0968f773578138bf7bafc561fe51d6
SSDEEP

768:X9J/3FzjgfanEGx8V36unjv88tznuRU65Y4gpph1ePVCML:N5VzcfA/6LrVpL74gfh16nL

Score

9^/10

Malware Config

Signatures

UPX dump on OEP (original entry point) 7 IoCs

resource	yara_rule
behavioral2/memory/3516-0-0x0000000000700000-0x0000000000718000-memory.dmp	UPX
behavioral2/memory/3516-6-0x0000000000700000-0x0000000000718000-memory.dmp	UPX
behavioral2/files/0x000700000002346e-7.dat	UPX
behavioral2/memory/4296-8-0x0000000000550000-0x0000000000568000-memory.dmp	UPX
behavioral2/files/0x00030000000229d7-12.dat	UPX
behavioral2/files/0x000800000002346a-29.dat	UPX
behavioral2/memory/4296-31-0x0000000000550000-0x0000000000568000-memory.dmp	UPX

Executes dropped EXE 1 IoCs

pid	Process
4296	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 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3516-0-0x0000000000700000-0x0000000000718000-memory.dmp	upx
behavioral2/memory/3516-6-0x0000000000700000-0x0000000000718000-memory.dmp	upx
behavioral2/files/0x000700000002346e-7.dat	upx
behavioral2/memory/4296-8-0x0000000000550000-0x0000000000568000-memory.dmp	upx
behavioral2/files/0x00030000000229d7-12.dat	upx
behavioral2/files/0x000800000002346a-29.dat	upx
behavioral2/memory/4296-31-0x0000000000550000-0x0000000000568000-memory.dmp	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"	751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.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	751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3516	751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe
Token: SeDebugPrivilege	4296	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3516 wrote to memory of 4296	3516	751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe	82
PID 3516 wrote to memory of 4296	3516	751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe	82
PID 3516 wrote to memory of 4296	3516	751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe	82

C:\Users\Admin\AppData\Local\Temp\751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe
"C:\Users\Admin\AppData\Local\Temp\751003cbbfbae322a2d3d60ac00ddd89cb4ba3bb5ef1a60048d585125a55476d.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3516
- 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:4296

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

1

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
348KB

MD5
5241fbb9220de2bcf42685588d354f26

SHA1
dc4740a48574145c36d5991e921acb9b2e0a2637

SHA256
ad34fde584648ac3aa0dc8eed04f411a32d84259f18c0b9aee674e357b5c5ff6

SHA512
73afbeef5ff808e785f86638a8a86317c78ee5dcd468bb58a114994ed33f50d8dd157b101c981ee5dae34af484c5b19798ee56c525d622dd81f4bc2adc4508f5

Download Submit
C:\Users\Admin\AppData\Local\Temp\gHgBzPh0eByNtSJ.exe

Filesize
27KB

MD5
ecebeb70429934f2590075be53ba3f85

SHA1
b16c2314356fb0ea99746fb107daa47d7722326b

SHA256
44ac090115cc5204d2a90aa00e8f9fd28498028bd068c18084433c8e765a9b0e

SHA512
87b659b00edc681e3480c51a609bc15ba6a97f1e407c637b291034eec0bb4328dcac2eb317791aaee3a1aa6c4a443fb5a7fc6bc3259649599838683b2cbb413a

Download Submit
C:\Windows\CTS.exe

Filesize
27KB

MD5
a6749b968461644db5cc0ecceffb224a

SHA1
2795aa37b8586986a34437081351cdd791749a90

SHA256
720023737d7ff700818f55612ba069a609a5ddea646bb3509b615ee3523a4ca2

SHA512
2a276816290746ed914af9cf6427aef31ce9395b8e9937090e329a8f74fb84c62d15b196e13346caa086842b3f5f549b9eb20cbf422d18c9c1b63e6342ea90b4

Download Submit
memory/3516-0-0x0000000000700000-0x0000000000718000-memory.dmp

Filesize
96KB

Download
memory/3516-6-0x0000000000700000-0x0000000000718000-memory.dmp

Filesize
96KB

Download
memory/4296-8-0x0000000000550000-0x0000000000568000-memory.dmp

Filesize
96KB

Download
memory/4296-31-0x0000000000550000-0x0000000000568000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads