466a54d0b40dae3da963f52da4b2e993deca81ee39a2bb4b6d41582e5feff5e3

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
11/07/2024, 11:01

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General

Target

MalwareBazaar.exe
Size

1.3MB
MD5

ccc431f7f61f9aeec3cab9f01352214e
SHA1

11d0637469bafcdca12f5591457f2c5e4ca1af56
SHA256

466a54d0b40dae3da963f52da4b2e993deca81ee39a2bb4b6d41582e5feff5e3
SHA512

e57c280f57b5aa72362b502c963179470efd6114ac5ee52cff59cc8cca83e5d453e27e55e2495e00ce2549b322dad2920cb75e13edd43fa35033ea2f9813b6a9
SSDEEP

12288:HNLn2J8+XJ3HPoYo07jsMZa3EOAqC7WT0ltDQFSbBL1uccKslJy:tLnsZAz0vZ9hw0ffZqlJy

Score

10^/10

evasion execution persistence trojan

Malware Config

Signatures

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	MalwareBazaar.exe

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2958949473-3205530200-1453100116-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	grpconv.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\KDTHWH = "C:\\Program Files (x86)\\Windows Mail\\wab.exe"	grpconv.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2576	powershell.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	MalwareBazaar.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	MalwareBazaar.exe

Suspicious use of SetThreadContext 7 IoCs

description	pid	Process	procid_target
PID 2756 set thread context of 1944	2756	MalwareBazaar.exe	37
PID 1944 set thread context of 2756	1944	wab.exe	29
PID 1944 set thread context of 2756	1944	wab.exe	29
PID 1944 set thread context of 2756	1944	wab.exe	29
PID 1944 set thread context of 1208	1944	wab.exe	21
PID 1944 set thread context of 1764	1944	wab.exe	39
PID 1764 set thread context of 2756	1764	grpconv.exe	29

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2576	powershell.exe
1944	wab.exe
1944	wab.exe
1944	wab.exe
1944	wab.exe
1944	wab.exe
1944	wab.exe
1944	wab.exe
1944	wab.exe
1944	wab.exe
1944	wab.exe
1944	wab.exe
1764	grpconv.exe
1764	grpconv.exe
1764	grpconv.exe
1764	grpconv.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
1944	wab.exe
1944	wab.exe
1944	wab.exe
1944	wab.exe
1208	Explorer.EXE
1208	Explorer.EXE
1764	grpconv.exe
1764	grpconv.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2576	powershell.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 2576	2756	MalwareBazaar.exe	31
PID 2756 wrote to memory of 2576	2756	MalwareBazaar.exe	31
PID 2756 wrote to memory of 2576	2756	MalwareBazaar.exe	31
PID 2756 wrote to memory of 2564	2756	MalwareBazaar.exe	33
PID 2756 wrote to memory of 2564	2756	MalwareBazaar.exe	33
PID 2756 wrote to memory of 2564	2756	MalwareBazaar.exe	33
PID 2756 wrote to memory of 2564	2756	MalwareBazaar.exe	33
PID 2756 wrote to memory of 2564	2756	MalwareBazaar.exe	33
PID 2756 wrote to memory of 2536	2756	MalwareBazaar.exe	34
PID 2756 wrote to memory of 2536	2756	MalwareBazaar.exe	34
PID 2756 wrote to memory of 2536	2756	MalwareBazaar.exe	34
PID 2756 wrote to memory of 2536	2756	MalwareBazaar.exe	34
PID 2756 wrote to memory of 2536	2756	MalwareBazaar.exe	34
PID 2756 wrote to memory of 2612	2756	MalwareBazaar.exe	35
PID 2756 wrote to memory of 2612	2756	MalwareBazaar.exe	35
PID 2756 wrote to memory of 2612	2756	MalwareBazaar.exe	35
PID 2756 wrote to memory of 2612	2756	MalwareBazaar.exe	35
PID 2756 wrote to memory of 2612	2756	MalwareBazaar.exe	35
PID 2756 wrote to memory of 2588	2756	MalwareBazaar.exe	36
PID 2756 wrote to memory of 2588	2756	MalwareBazaar.exe	36
PID 2756 wrote to memory of 2588	2756	MalwareBazaar.exe	36
PID 2756 wrote to memory of 2588	2756	MalwareBazaar.exe	36
PID 2756 wrote to memory of 2588	2756	MalwareBazaar.exe	36
PID 2756 wrote to memory of 1944	2756	MalwareBazaar.exe	37
PID 2756 wrote to memory of 1944	2756	MalwareBazaar.exe	37
PID 2756 wrote to memory of 1944	2756	MalwareBazaar.exe	37
PID 2756 wrote to memory of 1944	2756	MalwareBazaar.exe	37
PID 2756 wrote to memory of 1944	2756	MalwareBazaar.exe	37
PID 2756 wrote to memory of 1944	2756	MalwareBazaar.exe	37
PID 2756 wrote to memory of 1944	2756	MalwareBazaar.exe	37
PID 2756 wrote to memory of 2272	2756	MalwareBazaar.exe	38
PID 2756 wrote to memory of 2272	2756	MalwareBazaar.exe	38
PID 2756 wrote to memory of 2272	2756	MalwareBazaar.exe	38
PID 1208 wrote to memory of 1764	1208	Explorer.EXE	39
PID 1208 wrote to memory of 1764	1208	Explorer.EXE	39
PID 1208 wrote to memory of 1764	1208	Explorer.EXE	39
PID 1208 wrote to memory of 1764	1208	Explorer.EXE	39

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	MalwareBazaar.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
  "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
  2⤵
  - UAC bypass
  - Checks whether UAC is enabled
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:2756
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe" -Force
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2576
- - C:\Windows\System32\calc.exe
    "C:\Windows\System32\calc.exe"
    3⤵
    PID:2564
- - C:\Windows\System32\svchost.exe
    "C:\Windows\System32\svchost.exe"
    3⤵
    PID:2536
- - C:\Windows\System32\notepad.exe
    "C:\Windows\System32\notepad.exe"
    3⤵
    PID:2612
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe"
    3⤵
    PID:2588
- - C:\Program Files (x86)\Windows Mail\wab.exe
    "C:\Program Files (x86)\Windows Mail\wab.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    PID:1944
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 2756 -s 968
    3⤵
    PID:2272
- C:\Windows\SysWOW64\grpconv.exe
  "C:\Windows\SysWOW64\grpconv.exe"
  2⤵
  - Adds policy Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  PID:1764

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1764-41-0x0000000000100000-0x000000000013F000-memory.dmp

Filesize
252KB

Download
memory/1764-40-0x0000000000100000-0x000000000013F000-memory.dmp

Filesize
252KB

Download
memory/1944-35-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1944-39-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1944-37-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1944-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1944-30-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/1944-31-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2564-6-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2564-5-0x0000000000400000-0x0000000000443000-memory.dmp

Filesize
268KB

Download
memory/2576-11-0x000000001B590000-0x000000001B872000-memory.dmp

Filesize
2.9MB

Download
memory/2576-12-0x0000000002340000-0x0000000002348000-memory.dmp

Filesize
32KB

Download
memory/2756-4-0x000000001A5E0000-0x000000001A67C000-memory.dmp

Filesize
624KB

Download
memory/2756-34-0x000007FEF5F20000-0x000007FEF690C000-memory.dmp

Filesize
9.9MB

Download
memory/2756-33-0x000007FEF5F23000-0x000007FEF5F24000-memory.dmp

Filesize
4KB

Download
memory/2756-0-0x000007FEF5F23000-0x000007FEF5F24000-memory.dmp

Filesize
4KB

Download
memory/2756-3-0x000000001B6E0000-0x000000001B6F2000-memory.dmp

Filesize
72KB

Download
memory/2756-2-0x000007FEF5F20000-0x000007FEF690C000-memory.dmp

Filesize
9.9MB

Download
memory/2756-1-0x0000000000030000-0x0000000000042000-memory.dmp

Filesize
72KB

Download