46178572ae7ce7ea98c093e5ea7a09af9e8d367e7bf830d131ff1413f4488815

General

Target

391666d406f725aed5f387bac1d70789.exe
Size

1.3MB
MD5

391666d406f725aed5f387bac1d70789
SHA1

e258a5d50ce762617235af9cfa1a081ac091f32a
SHA256

46178572ae7ce7ea98c093e5ea7a09af9e8d367e7bf830d131ff1413f4488815
SHA512

2abb3d5d1c74c5c3079bfa2830c896de4f8a7c9280996fb8613ddc3f7cc15e812673b3aa7aa8742a93c64662638672016b5e3cbf4a4d9c162e5ef30b154ef352
SSDEEP

24576:Yrl4YBHXOjXaJg50owib4FHF7+wPz/wH8wz/pywAMMNOB284bA52qm:Yqi+l3wibU/nwz/p94Nyusm

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1628	zerub3_391666d406f725aed5f387bac1d70789.exe
2848	zerub3_391666d406f725aed5f387bac1d70789.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2848-23-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/2848-21-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/2848-17-0x0000000000400000-0x0000000000412000-memory.dmp	upx
behavioral1/memory/2848-27-0x0000000000400000-0x0000000000412000-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\USER\S-1-5-21-2444714103-3190537498-3629098939-1000\Software\Microsoft\Windows\CurrentVersion\Run\nwc = "C:\\Windows\\nwc.exe"	zerub3_391666d406f725aed5f387bac1d70789.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\nwc = "C:\\Windows\\nwc.exe"	zerub3_391666d406f725aed5f387bac1d70789.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1628 set thread context of 2848	1628	zerub3_391666d406f725aed5f387bac1d70789.exe	1

Drops file in Windows directory 8 IoCs

description	ioc	Process
File created	C:\Windows\zerub3_391666d406f725aed5f387bac1d70789.exe	391666d406f725aed5f387bac1d70789.exe
File opened for modification	C:\Windows\zerub3_391666d406f725aed5f387bac1d70789.exe	391666d406f725aed5f387bac1d70789.exe
File created	C:\Windows\7-zip.jpg	zerub3_391666d406f725aed5f387bac1d70789.exe
File created	C:\Windows\test.exe	zerub3_391666d406f725aed5f387bac1d70789.exe
File created	C:\Windows\7z464.exe	zerub3_391666d406f725aed5f387bac1d70789.exe
File created	C:\Windows\nwc.exe	zerub3_391666d406f725aed5f387bac1d70789.exe
File opened for modification	C:\Windows\nwc.exe	zerub3_391666d406f725aed5f387bac1d70789.exe
File opened for modification	C:\Windows\7-zip.jpg	DllHost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2848	zerub3_391666d406f725aed5f387bac1d70789.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2808	DllHost.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 1628	2220	391666d406f725aed5f387bac1d70789.exe	3
PID 2220 wrote to memory of 1628	2220	391666d406f725aed5f387bac1d70789.exe	3
PID 2220 wrote to memory of 1628	2220	391666d406f725aed5f387bac1d70789.exe	3
PID 2220 wrote to memory of 1628	2220	391666d406f725aed5f387bac1d70789.exe	3
PID 1628 wrote to memory of 2848	1628	zerub3_391666d406f725aed5f387bac1d70789.exe	1
PID 1628 wrote to memory of 2848	1628	zerub3_391666d406f725aed5f387bac1d70789.exe	1
PID 1628 wrote to memory of 2848	1628	zerub3_391666d406f725aed5f387bac1d70789.exe	1
PID 1628 wrote to memory of 2848	1628	zerub3_391666d406f725aed5f387bac1d70789.exe	1
PID 1628 wrote to memory of 2848	1628	zerub3_391666d406f725aed5f387bac1d70789.exe	1
PID 1628 wrote to memory of 2848	1628	zerub3_391666d406f725aed5f387bac1d70789.exe	1

C:\Windows\zerub3_391666d406f725aed5f387bac1d70789.exe
C:\Windows\zerub3_391666d406f725aed5f387bac1d70789.exe
1⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:2848

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Drops file in Windows directory
- Suspicious use of FindShellTrayWindow
PID:2808

C:\Windows\zerub3_391666d406f725aed5f387bac1d70789.exe
"C:\Windows\zerub3_391666d406f725aed5f387bac1d70789.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1628

C:\Users\Admin\AppData\Local\Temp\391666d406f725aed5f387bac1d70789.exe
"C:\Users\Admin\AppData\Local\Temp\391666d406f725aed5f387bac1d70789.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2220

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

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\7-zip.jpg

Filesize
10KB

MD5
ba62da181a50d32ccae62bec03d75d19

SHA1
646f50b30556935bee4e312b25e613c4c15a6b26

SHA256
cc7ad4c4b696a3d035bacc006f8906c39d893fefbaaf1fabd98175f465a0d5fb

SHA512
5b1853d4cecf8caa524be46d3b3af136a6c8622719977020928895140edd5cceaa0a5dcbcba5daf3b44b6cec8bc127b9c604218d670fcbcf89b3048ab1ec9c52

Download Submit
C:\Windows\zerub3_391666d406f725aed5f387bac1d70789.exe

Filesize
1.3MB

MD5
391666d406f725aed5f387bac1d70789

SHA1
e258a5d50ce762617235af9cfa1a081ac091f32a

SHA256
46178572ae7ce7ea98c093e5ea7a09af9e8d367e7bf830d131ff1413f4488815

SHA512
2abb3d5d1c74c5c3079bfa2830c896de4f8a7c9280996fb8613ddc3f7cc15e812673b3aa7aa8742a93c64662638672016b5e3cbf4a4d9c162e5ef30b154ef352

Download Submit
memory/1628-12-0x0000000002F40000-0x0000000002F42000-memory.dmp

Filesize
8KB

Download
memory/1628-22-0x0000000010000000-0x0000000010068000-memory.dmp

Filesize
416KB

Download
memory/1628-11-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/2220-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2220-8-0x0000000010000000-0x0000000010068000-memory.dmp

Filesize
416KB

Download
memory/2808-19-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2808-13-0x00000000001E0000-0x00000000001E2000-memory.dmp

Filesize
8KB

Download
memory/2808-26-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2848-14-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2848-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2848-17-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2848-21-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2848-23-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2848-27-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads