ad678c10180b6341959060a8d176c07011786a4faf4d36a7e87471f1224881dc

General

Target

8d45ff8827d256dda0276dd6731ee8ed.exe
Size

85KB
MD5

8d45ff8827d256dda0276dd6731ee8ed
SHA1

c4d51064934495f7830b98c80b51c5af11111ef8
SHA256

ad678c10180b6341959060a8d176c07011786a4faf4d36a7e87471f1224881dc
SHA512

19139020360693d316deb31add14bab11c6211634a9dc9e223c7eaa8b4490820a68443e640a517ed26e5518c06495329faee06c285c20539c22d7099a629ef96
SSDEEP

1536:SKcR4mjD9r823FWfhrolmxIFqQAl3G4KbZA0axyZzJWx1BdCRczVtV:SKcWmjRrz3WhclyIOZKbZJzQdmCh

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
628	tNw74DlJB7AVWJn.exe
2452	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/3668-0-0x0000000000840000-0x0000000000857000-memory.dmp	upx
behavioral2/memory/2452-7-0x00000000008B0000-0x00000000008C7000-memory.dmp	upx
behavioral2/memory/3668-9-0x0000000000840000-0x0000000000857000-memory.dmp	upx
behavioral2/files/0x0003000000022778-13.dat	upx
behavioral2/files/0x0007000000023232-8.dat	upx
behavioral2/files/0x0007000000023232-6.dat	upx
behavioral2/memory/2452-41-0x00000000008B0000-0x00000000008C7000-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"	8d45ff8827d256dda0276dd6731ee8ed.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	8d45ff8827d256dda0276dd6731ee8ed.exe
File created	C:\Windows\CTS.exe	CTS.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3668	8d45ff8827d256dda0276dd6731ee8ed.exe
Token: SeDebugPrivilege	2452	CTS.exe
Token: SeBackupPrivilege	2732	dw20.exe
Token: SeBackupPrivilege	2732	dw20.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3668 wrote to memory of 628	3668	8d45ff8827d256dda0276dd6731ee8ed.exe	17
PID 3668 wrote to memory of 628	3668	8d45ff8827d256dda0276dd6731ee8ed.exe	17
PID 3668 wrote to memory of 2452	3668	8d45ff8827d256dda0276dd6731ee8ed.exe	15
PID 3668 wrote to memory of 2452	3668	8d45ff8827d256dda0276dd6731ee8ed.exe	15
PID 3668 wrote to memory of 2452	3668	8d45ff8827d256dda0276dd6731ee8ed.exe	15
PID 628 wrote to memory of 2732	628	tNw74DlJB7AVWJn.exe	21
PID 628 wrote to memory of 2732	628	tNw74DlJB7AVWJn.exe	21

C:\Users\Admin\AppData\Local\Temp\8d45ff8827d256dda0276dd6731ee8ed.exe
"C:\Users\Admin\AppData\Local\Temp\8d45ff8827d256dda0276dd6731ee8ed.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3668
- 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:2452
- C:\Users\Admin\AppData\Local\Temp\tNw74DlJB7AVWJn.exe
  C:\Users\Admin\AppData\Local\Temp\tNw74DlJB7AVWJn.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:628
- - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
    dw20.exe -x -s 804
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:2732

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

Query Registry

2

T1012

System Information Discovery

2

T1082

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
74KB

MD5
dec2a0b8ce32467804653fe8f4c11554

SHA1
e654011440bb5bb2e193cabe5fbda58a31c16a47

SHA256
9037666fbbca379eab14ee4a3330fbbd1c30c9513073589d83d3637de8b251f3

SHA512
00d262de21b5d51c237b219d90907af67efffe66a0b3ee86c836ca1b9aeb3a290d2824363631fe2e704d10a79c8f37cf8c5c435c918a50bf017c817f294d1945

Download Submit
C:\Users\Admin\AppData\Local\Temp\tNw74DlJB7AVWJn.exe

Filesize
1KB

MD5
105e8c5d04b95a65a867b01f0b4fd848

SHA1
a6ddb5c8918c65935b7b06bc739a1bed12186573

SHA256
b8689f39fd54c4c0797ed89fbb8036d083cb77033db4f3e8d06f919e3c7616dd

SHA512
1ea4faafa0b7837074769bac201959956128001d60b6830626b192205f05c6647587ccb2c7dff70c542e6202ae3d373529e6f8c1ce1a0e00cf90549bbc86f0ce

Download Submit
C:\Windows\CTS.exe

Filesize
6KB

MD5
dceae6796584cb5da274fba7f602c1cf

SHA1
af5852c176770a739dd9a949233f23d33c106cd4

SHA256
40c31f92022be367f85088a6074ea20a691f8c98d8f08a8dc6fdc712214bea3c

SHA512
30f6896d60daa61c534b6dace43a4305f799f0bcca520bb57f3ba5c2d250f03eb03ee41e7854ed21cac54fd74474254a61ae254d4d7d15d55f2f5570ce69f844

Download Submit
memory/628-27-0x00007FFCA0A20000-0x00007FFCA13C1000-memory.dmp

Filesize
9.6MB

Download
memory/628-30-0x00007FFCA0A20000-0x00007FFCA13C1000-memory.dmp

Filesize
9.6MB

Download
memory/628-31-0x0000000001030000-0x0000000001040000-memory.dmp

Filesize
64KB

Download
memory/628-39-0x00007FFCA0A20000-0x00007FFCA13C1000-memory.dmp

Filesize
9.6MB

Download
memory/2452-7-0x00000000008B0000-0x00000000008C7000-memory.dmp

Filesize
92KB

Download
memory/2452-41-0x00000000008B0000-0x00000000008C7000-memory.dmp

Filesize
92KB

Download
memory/3668-0-0x0000000000840000-0x0000000000857000-memory.dmp

Filesize
92KB

Download
memory/3668-9-0x0000000000840000-0x0000000000857000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads