471325daa2bc75f50856e93e9de088386556fc3ead653894d5c2a67f2a8b4975

Resubmissions

01-07-2020 13:24

200701-3ayryqmz26 10

30-06-2020 05:41

200630-m1a6tbcjt2 10

Analysis

max time kernel
136s
max time network
136s
platform
windows10_x64
resource
win10v200430
submitted
30-06-2020 05:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

data.bin.exe
Size

119KB
MD5

f500854e3cf9556688203a3d869b7d6d
SHA1

281aab2eb26f31cf2255e2f5a467fc5eebda8df8
SHA256

471325daa2bc75f50856e93e9de088386556fc3ead653894d5c2a67f2a8b4975
SHA512

bccb54a68003bde3304dd6824f4bc6a3a5f06995a85bf371b1581fd00e0dc9ff40a1765594b61da9a2cbdf9c0372916a8694af2a66759a534b746981418101d4

Score

10^/10

persistence

Malware Config

Signatures

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

WerFault.exegennt.exe

pid	process
3888	WerFault.exe
3888	WerFault.exe
3888	WerFault.exe
3888	WerFault.exe
3888	WerFault.exe
3888	WerFault.exe
3888	WerFault.exe
3888	WerFault.exe
3888	WerFault.exe
3888	WerFault.exe
3888	WerFault.exe
3888	WerFault.exe
3888	WerFault.exe
2500	gennt.exe
2500	gennt.exe

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

gennt.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\ProgramData\\ac63c1c868e87043fad8\\gennt.exe\""	gennt.exe

Enumerates connected drives 3 TTPs

Query Registry
T1012

Peripheral Device Discovery
T1120

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

data.bin.exegennt.exe

description	pid	process	target process
PID 724 wrote to memory of 2500	724	data.bin.exe	gennt.exe
PID 724 wrote to memory of 2500	724	data.bin.exe	gennt.exe
PID 724 wrote to memory of 2500	724	data.bin.exe	gennt.exe
PID 2500 wrote to memory of 2764	2500	gennt.exe	secinit.exe
PID 2500 wrote to memory of 2764	2500	gennt.exe	secinit.exe
PID 2500 wrote to memory of 2764	2500	gennt.exe	secinit.exe
PID 2500 wrote to memory of 2764	2500	gennt.exe	secinit.exe
PID 2500 wrote to memory of 2764	2500	gennt.exe	secinit.exe
PID 2500 wrote to memory of 2764	2500	gennt.exe	secinit.exe
PID 2500 wrote to memory of 2764	2500	gennt.exe	secinit.exe
PID 2500 wrote to memory of 2764	2500	gennt.exe	secinit.exe
PID 2500 wrote to memory of 984	2500	gennt.exe	cmd.exe
PID 2500 wrote to memory of 984	2500	gennt.exe	cmd.exe
PID 2500 wrote to memory of 984	2500	gennt.exe	cmd.exe

Executes dropped EXE 1 IoCs

Processes:

gennt.exe

pid process

2500 gennt.exe
Deletes itself 1 IoCs

Processes:

gennt.exe

pid process

2500 gennt.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3888 2764 WerFault.exe secinit.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 3888 WerFault.exe
Token: SeBackupPrivilege 3888 WerFault.exe
Token: SeDebugPrivilege 3888 WerFault.exe

pid	process
2500	gennt.exe

pid	process
2500	gennt.exe

pid	pid_target	process	target process
3888	2764	WerFault.exe	secinit.exe

description	pid	process
Token: SeRestorePrivilege	3888	WerFault.exe
Token: SeBackupPrivilege	3888	WerFault.exe
Token: SeDebugPrivilege	3888	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\data.bin.exe
"C:\Users\Admin\AppData\Local\Temp\data.bin.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:724

C:\ProgramData\ac63c1c868e87043fad8\gennt.exe
C:\ProgramData\ac63c1c868e87043fad8\gennt.exe "C:\Users\Admin\AppData\Local\Temp\data.bin.exe" ensgJJ
2⤵
- Suspicious behavior: EnumeratesProcesses
- Modifies WinLogon for persistence
- Suspicious use of WriteProcessMemory
- Executes dropped EXE
- Deletes itself
PID:2500

C:\Windows\SysWOW64\secinit.exe
C:\ProgramData\ac63c1c868e87043fad8\gennt.exe
3⤵
PID:2764

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2764 -s 664
4⤵
- Suspicious behavior: EnumeratesProcesses
- Program crash
- Suspicious use of AdjustPrivilegeToken
PID:3888

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" powershell.exe -Command "& {Add-MpPreference -ExclusionPath C:\ProgramData\ac63c1c868e87043fad8}"
3⤵
PID:984

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\ac63c1c868e87043fad8\gennt.exe

Download Submit
C:\ProgramData\ac63c1c868e87043fad8\gennt.exe

Download Submit
memory/984-10-0x0000000000000000-mapping.dmp

Download
memory/2500-0-0x0000000000000000-mapping.dmp

Download
memory/2764-3-0x0000000000000000-mapping.dmp

Download
memory/2764-5-0x0000000000000000-mapping.dmp

Download
memory/2764-6-0x0000000000000000-mapping.dmp

Download
memory/2764-7-0x0000000000000000-mapping.dmp

Download
memory/2764-8-0x0000000000000000-mapping.dmp

Download
memory/2764-9-0x0000000000000000-mapping.dmp

Download
memory/3888-4-0x00000000043A0000-0x00000000043A1000-memory.dmp

Filesize
4KB

Download
memory/3888-11-0x0000000004B20000-0x0000000004B21000-memory.dmp

Filesize
4KB

Download