f189a7720bfc21d05d4cffafefe2d0c7a63a4ddadc0efbf89947a3885156926f

General

Target

f189a7720bfc21d05d4cffafefe2d0c7a63a4ddadc0efbf89947a3885156926f.xls
Size

95KB
MD5

d5a8c791b69acbebb897441fab717cde
SHA1

0823f7b328023f29f7086b541f30d6a13f1a7720
SHA256

f189a7720bfc21d05d4cffafefe2d0c7a63a4ddadc0efbf89947a3885156926f
SHA512

28ffdb34852b0d84bb42d19f461166ea0564ebee41a63e871ad7d81826f1eb30f66514a126f84fffd47830ddc3f28e3f2fce0f755c798dfbb06f9741a1519578
SSDEEP

1536:UkKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg/HuS4hcTO97v7UYdEJmEj7S:bKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgK

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://yakosurf.com/wp-includes/y9jgKE7f1wMM/

xlm40.dropper

https://fikti.bem.gunadarma.ac.id/SDM/xDYmcOngg/

xlm40.dropper

http://armannahalpersian.ir/armannahalpersian/byxUd7hAO2/

xlm40.dropper

http://disweb.sk/lfHCegwZndgMs/KFfG/

Signatures

Process spawned unexpected child process 4 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\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4856	1236	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3860	1236	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1480	1236	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1776	1236	regsvr32.exe	82

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1236	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1236	EXCEL.EXE
1236	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1236	EXCEL.EXE
1236	EXCEL.EXE
1236	EXCEL.EXE
1236	EXCEL.EXE
1236	EXCEL.EXE
1236	EXCEL.EXE
1236	EXCEL.EXE
1236	EXCEL.EXE
1236	EXCEL.EXE
1236	EXCEL.EXE
1236	EXCEL.EXE
1236	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 4856	1236	EXCEL.EXE	88
PID 1236 wrote to memory of 4856	1236	EXCEL.EXE	88
PID 1236 wrote to memory of 3860	1236	EXCEL.EXE	94
PID 1236 wrote to memory of 3860	1236	EXCEL.EXE	94
PID 1236 wrote to memory of 1480	1236	EXCEL.EXE	95
PID 1236 wrote to memory of 1480	1236	EXCEL.EXE	95
PID 1236 wrote to memory of 1776	1236	EXCEL.EXE	96
PID 1236 wrote to memory of 1776	1236	EXCEL.EXE	96

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\f189a7720bfc21d05d4cffafefe2d0c7a63a4ddadc0efbf89947a3885156926f.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4856
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3860
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1480
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1776

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

Filesize
1KB

MD5
b9914546262d3c6a75abe7c8c1a48d67

SHA1
d29b71bc1ba761502618c179e4eb3286672dfd5a

SHA256
00a99d36417ebb1cc4a07870125bb9c6d3ba5fe83aa045840153e36e7dc8de13

SHA512
5cca456560e485cc4fb2ccb41c6644b3582c40101da67c2350153e40ae01afebc33c528cf7e33d73834cd371ae07cd077449263494c2d986f8910276b0ffed77

Download Submit
memory/1236-16-0x00007FFFF4EB0000-0x00007FFFF50A5000-memory.dmp

Filesize
2.0MB

Download
memory/1236-12-0x00007FFFF4EB0000-0x00007FFFF50A5000-memory.dmp

Filesize
2.0MB

Download
memory/1236-2-0x00007FFFB4F30000-0x00007FFFB4F40000-memory.dmp

Filesize
64KB

Download
memory/1236-4-0x00007FFFF4EB0000-0x00007FFFF50A5000-memory.dmp

Filesize
2.0MB

Download
memory/1236-5-0x00007FFFB4F30000-0x00007FFFB4F40000-memory.dmp

Filesize
64KB

Download
memory/1236-6-0x00007FFFF4EB0000-0x00007FFFF50A5000-memory.dmp

Filesize
2.0MB

Download
memory/1236-10-0x00007FFFF4EB0000-0x00007FFFF50A5000-memory.dmp

Filesize
2.0MB

Download
memory/1236-17-0x00007FFFB2AB0000-0x00007FFFB2AC0000-memory.dmp

Filesize
64KB

Download
memory/1236-0-0x00007FFFB4F30000-0x00007FFFB4F40000-memory.dmp

Filesize
64KB

Download
memory/1236-14-0x00007FFFF4EB0000-0x00007FFFF50A5000-memory.dmp

Filesize
2.0MB

Download
memory/1236-3-0x00007FFFB4F30000-0x00007FFFB4F40000-memory.dmp

Filesize
64KB

Download
memory/1236-15-0x00007FFFF4EB0000-0x00007FFFF50A5000-memory.dmp

Filesize
2.0MB

Download
memory/1236-9-0x00007FFFF4EB0000-0x00007FFFF50A5000-memory.dmp

Filesize
2.0MB

Download
memory/1236-18-0x00007FFFB2AB0000-0x00007FFFB2AC0000-memory.dmp

Filesize
64KB

Download
memory/1236-13-0x00007FFFF4EB0000-0x00007FFFF50A5000-memory.dmp

Filesize
2.0MB

Download
memory/1236-11-0x00007FFFF4EB0000-0x00007FFFF50A5000-memory.dmp

Filesize
2.0MB

Download
memory/1236-8-0x00007FFFF4EB0000-0x00007FFFF50A5000-memory.dmp

Filesize
2.0MB

Download
memory/1236-7-0x00007FFFB4F30000-0x00007FFFB4F40000-memory.dmp

Filesize
64KB

Download
memory/1236-45-0x00007FFFF4EB0000-0x00007FFFF50A5000-memory.dmp

Filesize
2.0MB

Download
memory/1236-46-0x00007FFFF4F4D000-0x00007FFFF4F4E000-memory.dmp

Filesize
4KB

Download
memory/1236-47-0x00007FFFF4EB0000-0x00007FFFF50A5000-memory.dmp

Filesize
2.0MB

Download
memory/1236-51-0x00007FFFF4EB0000-0x00007FFFF50A5000-memory.dmp

Filesize
2.0MB

Download
memory/1236-1-0x00007FFFF4F4D000-0x00007FFFF4F4E000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads