d5fa44d671a53d0d782e5cedddd8f5a2f4026ef022b4259c45b8f4fd36770767

General

Target

d5fa44d671a53d0d782e5cedddd8f5a2f4026ef022b4259c45b8f4fd36770767.xls
Size

91KB
MD5

0572c2c8b87e26442b1f4f556a085850
SHA1

0e454bc800c10cda1798d0f2862e85b816f73d30
SHA256

d5fa44d671a53d0d782e5cedddd8f5a2f4026ef022b4259c45b8f4fd36770767
SHA512

304d0d586ed0a95a0a3e0812c69f57e19510181109be7942bcf0b4164bfa5eeb5ed03b87c1bc60055593be1329e11f2237f20e142d5d905a0c1c0d78ea2d0b47
SSDEEP

1536:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgqbCXuZH4gb4CEn9J4Z3z3:eKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgG

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://www.conceptagency.net/css/b8eaKN/

xlm40.dropper

https://bencevendeghaz.hu/2zjoi/cwfKJOzA/

xlm40.dropper

http://45.32.114.141/xilte/Uqm6Eysf3Hkjwh/

xlm40.dropper

http://ruitaiwz.com/wp-admin/MXlp5IsUKwT1k0DtzT/

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	1040	3368	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2996	3368	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4128	3368	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2120	3368	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
3368	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3368	EXCEL.EXE
3368	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
3368	EXCEL.EXE
3368	EXCEL.EXE
3368	EXCEL.EXE
3368	EXCEL.EXE
3368	EXCEL.EXE
3368	EXCEL.EXE
3368	EXCEL.EXE
3368	EXCEL.EXE
3368	EXCEL.EXE
3368	EXCEL.EXE
3368	EXCEL.EXE
3368	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3368 wrote to memory of 1040	3368	EXCEL.EXE	89
PID 3368 wrote to memory of 1040	3368	EXCEL.EXE	89
PID 3368 wrote to memory of 2996	3368	EXCEL.EXE	90
PID 3368 wrote to memory of 2996	3368	EXCEL.EXE	90
PID 3368 wrote to memory of 4128	3368	EXCEL.EXE	93
PID 3368 wrote to memory of 4128	3368	EXCEL.EXE	93
PID 3368 wrote to memory of 2120	3368	EXCEL.EXE	96
PID 3368 wrote to memory of 2120	3368	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\d5fa44d671a53d0d782e5cedddd8f5a2f4026ef022b4259c45b8f4fd36770767.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:3368
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:1040
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:2996
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:4128
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:2120

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
5e78443aa182286ce1e38fa96d15a44d

SHA1
c4397d1f7ef359bccd2d3e0198e4c116164ad668

SHA256
9347d9879b34503747f2f54716154bdab56c22c913174c5f6655f0cd65867445

SHA512
a122294728de7e7a34558b12cee8c51548b5385327836c6b639623237490a6d8d761b0a3e597007f462833c63b1c598a104c855ea758acd395dc9c34a64f6326

Download Submit
C:\Users\Admin\elv2.ooocccxxx

Filesize
26B

MD5
a413a6b0b4dd25a2a341cf13becce672

SHA1
5c18a31678ccb7d09ada7242a6d4ed6164b2ebac

SHA256
2e2f8ccc18ba3718965719e20d1f561c7a872a1ea50214ad3ba0ed0fe5fd19e3

SHA512
aa70031875406f0f167f995097ca6116ffeaea941aeabc88a2e136f22d81402b7aea510bcd0846d0b3bae949830210c8f731cc98d8d4b0cdb12be7eaa01b81e9

Download Submit
C:\Users\Admin\elv4.ooocccxxx

Filesize
1KB

MD5
4f2d6fb06aa69e88e0e37fa4710aa6d5

SHA1
b5c70a0aa8fee368d44a92202a9be4dbfb2b5ba4

SHA256
96bd687d69295177c5062554be02cc2cedfadea2e9137eb0af54077b3d8b5bb9

SHA512
d284c7c11df72baffc78eb943e581d1980ffec2de20ca6aeeee98b623bdef03f11e11401b84402cba5d64392a6edf4e95e22af68d41e4a2e1dd1f00102bc9caf

Download Submit
memory/3368-6-0x00007FFA38DB0000-0x00007FFA38FA5000-memory.dmp

Filesize
2.0MB

Download
memory/3368-14-0x00007FFA38DB0000-0x00007FFA38FA5000-memory.dmp

Filesize
2.0MB

Download
memory/3368-4-0x00007FF9F8E30000-0x00007FF9F8E40000-memory.dmp

Filesize
64KB

Download
memory/3368-8-0x00007FFA38DB0000-0x00007FFA38FA5000-memory.dmp

Filesize
2.0MB

Download
memory/3368-7-0x00007FFA38DB0000-0x00007FFA38FA5000-memory.dmp

Filesize
2.0MB

Download
memory/3368-10-0x00007FFA38DB0000-0x00007FFA38FA5000-memory.dmp

Filesize
2.0MB

Download
memory/3368-11-0x00007FFA38DB0000-0x00007FFA38FA5000-memory.dmp

Filesize
2.0MB

Download
memory/3368-12-0x00007FFA38DB0000-0x00007FFA38FA5000-memory.dmp

Filesize
2.0MB

Download
memory/3368-9-0x00007FFA38DB0000-0x00007FFA38FA5000-memory.dmp

Filesize
2.0MB

Download
memory/3368-0-0x00007FF9F8E30000-0x00007FF9F8E40000-memory.dmp

Filesize
64KB

Download
memory/3368-13-0x00007FF9F66D0000-0x00007FF9F66E0000-memory.dmp

Filesize
64KB

Download
memory/3368-5-0x00007FF9F8E30000-0x00007FF9F8E40000-memory.dmp

Filesize
64KB

Download
memory/3368-16-0x00007FFA38DB0000-0x00007FFA38FA5000-memory.dmp

Filesize
2.0MB

Download
memory/3368-17-0x00007FFA38DB0000-0x00007FFA38FA5000-memory.dmp

Filesize
2.0MB

Download
memory/3368-15-0x00007FFA38DB0000-0x00007FFA38FA5000-memory.dmp

Filesize
2.0MB

Download
memory/3368-18-0x00007FF9F66D0000-0x00007FF9F66E0000-memory.dmp

Filesize
64KB

Download
memory/3368-3-0x00007FF9F8E30000-0x00007FF9F8E40000-memory.dmp

Filesize
64KB

Download
memory/3368-52-0x00007FFA38DB0000-0x00007FFA38FA5000-memory.dmp

Filesize
2.0MB

Download
memory/3368-53-0x00007FFA38E4D000-0x00007FFA38E4E000-memory.dmp

Filesize
4KB

Download
memory/3368-54-0x00007FFA38DB0000-0x00007FFA38FA5000-memory.dmp

Filesize
2.0MB

Download
memory/3368-55-0x00007FFA38DB0000-0x00007FFA38FA5000-memory.dmp

Filesize
2.0MB

Download
memory/3368-1-0x00007FFA38E4D000-0x00007FFA38E4E000-memory.dmp

Filesize
4KB

Download
memory/3368-2-0x00007FF9F8E30000-0x00007FF9F8E40000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads