7559e6ca8b77400f88bf4e67208a1c32570a670068eccae9e3d226cc5471bd47

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28-04-2024 18:31

240428-w6cwyaec5v 10

21-04-2024 08:57

21-04-2024 05:45

18-04-2024 19:05

18-04-2024 16:34

04-03-2024 18:33

02-03-2024 17:01

02-03-2024 10:05

Analysis

max time kernel
299s
max time network
297s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
28-04-2024 18:31

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Report Analysis Logs

General

Target

bazaar.2020.02/HEUR-Backdoor.Win32.exe
Size

43KB
MD5

bf586b6af6353d3770bcee9907862711
SHA1

07b687ce7239ea191a9cc253d3cfd1fafec06d2b
SHA256

ecb05f56049ff565d1a77351ac21374b9ba05e3cb5ecabbd113d44a254d4e642
SHA512

897a8acfabf1b278ad2ce3f704a1e2e59fbc08dc3904785fd98e63e9aca705d1710e66727399c9eeab76f545dec3d97ae566ce33e0a103c1b0588ee4370a0e51
SSDEEP

768:VrgeWGJaj2b2/K6/1CSGIKPlavRzY0nEs3UgLM6KLi0z1xSFopI:ybs4K6dyNPIvRMEEgCnSipI

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

Smipvv.exeSmipvv.exe

pid	Process
2608	Smipvv.exe
2884	Smipvv.exe

Creates a Windows Service
persistence

Drops file in System32 directory 4 IoCs

Processes:

Smipvv.exe

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	Smipvv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	Smipvv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	Smipvv.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	Smipvv.exe

Drops file in Program Files directory 2 IoCs

Processes:

HEUR-Backdoor.Win32.exe

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft Kfhbnr\Smipvv.exe	HEUR-Backdoor.Win32.exe
File opened for modification	C:\Program Files (x86)\Microsoft Kfhbnr\Smipvv.exe	HEUR-Backdoor.Win32.exe

Modifies data under HKEY_USERS 8 IoCs

Processes:

Smipvv.exe

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	Smipvv.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	Smipvv.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	Smipvv.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Smipvv.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Smipvv.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Smipvv.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	Smipvv.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	Smipvv.exe

Suspicious behavior: RenamesItself 1 IoCs

Processes:

HEUR-Backdoor.Win32.exe

pid	Process
3160	HEUR-Backdoor.Win32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

HEUR-Backdoor.Win32.exe

description	pid	Process
Token: SeDebugPrivilege	3160	HEUR-Backdoor.Win32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

Smipvv.exe

description	pid	Process	procid_target
PID 2608 wrote to memory of 2884	2608	Smipvv.exe	88
PID 2608 wrote to memory of 2884	2608	Smipvv.exe	88
PID 2608 wrote to memory of 2884	2608	Smipvv.exe	88

C:\Users\Admin\AppData\Local\Temp\bazaar.2020.02\HEUR-Backdoor.Win32.exe
"C:\Users\Admin\AppData\Local\Temp\bazaar.2020.02\HEUR-Backdoor.Win32.exe"
1⤵
- Drops file in Program Files directory
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
PID:3160

C:\Program Files (x86)\Microsoft Kfhbnr\Smipvv.exe
"C:\Program Files (x86)\Microsoft Kfhbnr\Smipvv.exe"
1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2608
- C:\Program Files (x86)\Microsoft Kfhbnr\Smipvv.exe
  "C:\Program Files (x86)\Microsoft Kfhbnr\Smipvv.exe" Win7
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - Modifies data under HKEY_USERS
  PID:2884

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft Kfhbnr\Smipvv.exe

Filesize
43KB

MD5
bf586b6af6353d3770bcee9907862711

SHA1
07b687ce7239ea191a9cc253d3cfd1fafec06d2b

SHA256
ecb05f56049ff565d1a77351ac21374b9ba05e3cb5ecabbd113d44a254d4e642

SHA512
897a8acfabf1b278ad2ce3f704a1e2e59fbc08dc3904785fd98e63e9aca705d1710e66727399c9eeab76f545dec3d97ae566ce33e0a103c1b0588ee4370a0e51

Download Submit
memory/3160-3-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download