51b2fe7ed5d6da110fe512ac143f26b29b8819b25f4540e93825d310d60d2511

General

Target

6dd7773f1243d53e392e0d6c8f2c9b6d.exe
Size

546KB
MD5

6dd7773f1243d53e392e0d6c8f2c9b6d
SHA1

20623a673280a1170bf2c06de4395e598db0b3eb
SHA256

51b2fe7ed5d6da110fe512ac143f26b29b8819b25f4540e93825d310d60d2511
SHA512

7767efa2ab0c0729dad5c140a1b87fc2b38b5e1b335f120b68828bd6fb6e775f7df3702788c25a2941c855e9fa493e7927206df44d7eb179b81a91751900cfde

Score

7^/10

persistence spyware evasion trojan

Malware Config

Signatures

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious behavior: EnumeratesProcesses 25 IoCs

pid	Process
1524	ieinstal.exe
1524	ieinstal.exe
1524	ieinstal.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE

Adds Run entry to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\Bfis = "C:\\Users\\Admin\\AppData\\Local\\Bfis\\Bfis.hta"	6dd7773f1243d53e392e0d6c8f2c9b6d.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE
1208	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1131729243-447456001-3632642222-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wuapp.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1344 wrote to memory of 1524	1344	6dd7773f1243d53e392e0d6c8f2c9b6d.exe	26
PID 1344 wrote to memory of 1524	1344	6dd7773f1243d53e392e0d6c8f2c9b6d.exe	26
PID 1344 wrote to memory of 1524	1344	6dd7773f1243d53e392e0d6c8f2c9b6d.exe	26
PID 1344 wrote to memory of 1524	1344	6dd7773f1243d53e392e0d6c8f2c9b6d.exe	26
PID 1344 wrote to memory of 1524	1344	6dd7773f1243d53e392e0d6c8f2c9b6d.exe	26
PID 1344 wrote to memory of 1524	1344	6dd7773f1243d53e392e0d6c8f2c9b6d.exe	26
PID 1344 wrote to memory of 1524	1344	6dd7773f1243d53e392e0d6c8f2c9b6d.exe	26
PID 1344 wrote to memory of 1524	1344	6dd7773f1243d53e392e0d6c8f2c9b6d.exe	26
PID 1344 wrote to memory of 1524	1344	6dd7773f1243d53e392e0d6c8f2c9b6d.exe	26
PID 1208 wrote to memory of 1792	1208	Explorer.EXE	27
PID 1208 wrote to memory of 1792	1208	Explorer.EXE	27
PID 1208 wrote to memory of 1792	1208	Explorer.EXE	27
PID 1208 wrote to memory of 1792	1208	Explorer.EXE	27
PID 1208 wrote to memory of 1792	1208	Explorer.EXE	27
PID 1208 wrote to memory of 1792	1208	Explorer.EXE	27
PID 1208 wrote to memory of 1792	1208	Explorer.EXE	27
PID 1792 wrote to memory of 1132	1792	wuapp.exe	28
PID 1792 wrote to memory of 1132	1792	wuapp.exe	28
PID 1792 wrote to memory of 1132	1792	wuapp.exe	28
PID 1792 wrote to memory of 1132	1792	wuapp.exe	28
PID 1792 wrote to memory of 1132	1792	wuapp.exe	28

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1344 set thread context of 1524	1344	6dd7773f1243d53e392e0d6c8f2c9b6d.exe	26
PID 1524 set thread context of 1208	1524	ieinstal.exe	20
PID 1524 set thread context of 1208	1524	ieinstal.exe	20
PID 1792 set thread context of 1208	1792	wuapp.exe	20

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1524	ieinstal.exe
Token: SeDebugPrivilege	1792	wuapp.exe
Token: SeShutdownPrivilege	1208	Explorer.EXE

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
1524	ieinstal.exe
1524	ieinstal.exe
1524	ieinstal.exe
1524	ieinstal.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe
1792	wuapp.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Checks whether UAC is enabled
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
PID:1208
- C:\Users\Admin\AppData\Local\Temp\6dd7773f1243d53e392e0d6c8f2c9b6d.exe
  "C:\Users\Admin\AppData\Local\Temp\6dd7773f1243d53e392e0d6c8f2c9b6d.exe"
  2⤵
  - Adds Run entry to start application
  - Suspicious use of WriteProcessMemory
  - Suspicious use of SetThreadContext
  PID:1344
- - C:\Program Files (x86)\internet explorer\ieinstal.exe
    "C:\Program Files (x86)\internet explorer\ieinstal.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetThreadContext
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious behavior: MapViewOfSection
    PID:1524
- C:\Windows\SysWOW64\wuapp.exe
  "C:\Windows\SysWOW64\wuapp.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Modifies Internet Explorer settings
  - Suspicious use of WriteProcessMemory
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: MapViewOfSection
  PID:1792
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1132

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

Web Service

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

memory/1132-8-0x000000013F840000-0x000000013F8D3000-memory.dmp

Filesize
588KB

Download
memory/1208-2-0x00000000075B0000-0x00000000076B4000-memory.dmp

Filesize
1.0MB

Download
memory/1524-0-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1792-6-0x00000000030E0000-0x000000000316D000-memory.dmp

Filesize
564KB

Download
memory/1792-5-0x00000000030E0000-0x00000000031FB000-memory.dmp

Filesize
1.1MB

Download
memory/1792-4-0x0000000001000000-0x000000000100B000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads