0846910f2f2c0c686afab342cbb79965a115b35e41a0381819a0d10461d45c77

Resubmissions

14-07-2021 19:15

210714-kbf8zkt3qa 10

14-07-2021 12:29

210714-nbf5bw46ce 10

Analysis

max time kernel
548s
max time network
531s
platform
windows7_x64
resource
win7v20210408
submitted
14-07-2021 19:15

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General

Target

dbt_ntf_1184293.xlsm
Size

84KB
MD5

afdd3ac1e245c015cd6703ac38f6cc06
SHA1

6c5daf1541d2b05f5d6c99c2bc5a9bcff23688cf
SHA256

0846910f2f2c0c686afab342cbb79965a115b35e41a0381819a0d10461d45c77
SHA512

6c65d2a616397ed5645af8bb4a16dcadaaf9efa86d22b64509bad873eeb6086d7e9129eeee516f2d321771815b326dd858da7f13ad32721ce496cfc0d24300f3

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://162.248.225.89/m1.dll

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

regsvr32.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	1036	1948	regsvr32.exe	EXCEL.EXE

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

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-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.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"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.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"	EXCEL.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"	EXCEL.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"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1948 EXCEL.EXE
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

EXCEL.EXE

description pid process

Token: SeShutdownPrivilege 1948 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1948 EXCEL.EXE
1948 EXCEL.EXE
1948 EXCEL.EXE

pid	process
1948	EXCEL.EXE

description	pid	process
Token: SeShutdownPrivilege	1948	EXCEL.EXE

pid	process
1948	EXCEL.EXE
1948	EXCEL.EXE
1948	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1948 wrote to memory of 1036	1948	EXCEL.EXE	regsvr32.exe
PID 1948 wrote to memory of 1036	1948	EXCEL.EXE	regsvr32.exe
PID 1948 wrote to memory of 1036	1948	EXCEL.EXE	regsvr32.exe
PID 1948 wrote to memory of 1036	1948	EXCEL.EXE	regsvr32.exe
PID 1948 wrote to memory of 1036	1948	EXCEL.EXE	regsvr32.exe
PID 1948 wrote to memory of 1036	1948	EXCEL.EXE	regsvr32.exe
PID 1948 wrote to memory of 1036	1948	EXCEL.EXE	regsvr32.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\dbt_ntf_1184293.xlsm
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1948

C:\Windows\SysWOW64\regsvr32.exe
regsvr32 ..\odndmfd.dll
2⤵
- Process spawned unexpected child process
PID:1036

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1036-63-0x0000000000000000-mapping.dmp

Download
memory/1036-64-0x0000000075511000-0x0000000075513000-memory.dmp

Filesize
8KB

Download
memory/1036-65-0x0000000000180000-0x0000000000181000-memory.dmp

Filesize
4KB

Download
memory/1948-60-0x000000002F9E1000-0x000000002F9E4000-memory.dmp

Filesize
12KB

Download
memory/1948-61-0x0000000070FB1000-0x0000000070FB3000-memory.dmp

Filesize
8KB

Download
memory/1948-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download