cd844326e12de9e7c72f7f49c3bd0beabbbe849e6cdc98ea3d48a569676040eb

General

Target

cd844326e12de9e7c72f7f49c3bd0beabbbe849e6cdc98ea3d48a569676040eb.xls
Size

96KB
MD5

4481d2a29a13e1749116839b169268bf
SHA1

a0a76f9d961b989b309492f28110b2a9757144d0
SHA256

cd844326e12de9e7c72f7f49c3bd0beabbbe849e6cdc98ea3d48a569676040eb
SHA512

0357f9de85b3faf43411170abb6ec6b663026810cab54867301c78d4b1e172cea7680138808e673302f1249ce88ba3e58a9203b283f7d0635618822d074763d9
SSDEEP

1536:7kKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg2HuS4hcTO97v7UYdEJmQ:IKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg8

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://atperson.com/campusvirtual/EOgFGo17w/

xlm40.dropper

https://eliteturismo.com/phpmailer-old/dafdBxQONtk5Uf9dxll/

xlm40.dropper

http://atici.net/c/JDFDBMIz/

xlm40.dropper

http://domesticuif.co.za/libraries/nbnH9dpd/

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	2008	4088	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3424	4088	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1596	4088	regsvr32.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2172	4088	regsvr32.exe	81

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

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4088	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4088	EXCEL.EXE
4088	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE
4088	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4088 wrote to memory of 2008	4088	EXCEL.EXE	86
PID 4088 wrote to memory of 2008	4088	EXCEL.EXE	86
PID 4088 wrote to memory of 3424	4088	EXCEL.EXE	91
PID 4088 wrote to memory of 3424	4088	EXCEL.EXE	91
PID 4088 wrote to memory of 1596	4088	EXCEL.EXE	92
PID 4088 wrote to memory of 1596	4088	EXCEL.EXE	92
PID 4088 wrote to memory of 2172	4088	EXCEL.EXE	93
PID 4088 wrote to memory of 2172	4088	EXCEL.EXE	93

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\cd844326e12de9e7c72f7f49c3bd0beabbbe849e6cdc98ea3d48a569676040eb.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:4088
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2008
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3424
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1596
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2172

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
3KB

MD5
2288420968ee0d8a461b7304df6c4bf4

SHA1
95c1a7ccc7a826a2dc8da832ab6815bbedaeb191

SHA256
952e3edee2c204eaf743eb1cf7de2e97ac2300c9df3dc604803288ef84457712

SHA512
cf54844a9a12ea604099c02573163c23797d8f0bbb2f67d1024b795d67d0444d2f16d17ae94f60f3fdb88f46e2abc6e4f6b79b2b10045a4960caa59fa939b28e

Download Submit
memory/4088-9-0x00007FFE0FC50000-0x00007FFE0FE45000-memory.dmp

Filesize
2.0MB

Download
memory/4088-15-0x00007FFE0FC50000-0x00007FFE0FE45000-memory.dmp

Filesize
2.0MB

Download
memory/4088-5-0x00007FFDCFCD0000-0x00007FFDCFCE0000-memory.dmp

Filesize
64KB

Download
memory/4088-4-0x00007FFDCFCD0000-0x00007FFDCFCE0000-memory.dmp

Filesize
64KB

Download
memory/4088-2-0x00007FFDCFCD0000-0x00007FFDCFCE0000-memory.dmp

Filesize
64KB

Download
memory/4088-10-0x00007FFE0FC50000-0x00007FFE0FE45000-memory.dmp

Filesize
2.0MB

Download
memory/4088-11-0x00007FFE0FC50000-0x00007FFE0FE45000-memory.dmp

Filesize
2.0MB

Download
memory/4088-1-0x00007FFDCFCD0000-0x00007FFDCFCE0000-memory.dmp

Filesize
64KB

Download
memory/4088-0-0x00007FFDCFCD0000-0x00007FFDCFCE0000-memory.dmp

Filesize
64KB

Download
memory/4088-12-0x00007FFDCD640000-0x00007FFDCD650000-memory.dmp

Filesize
64KB

Download
memory/4088-8-0x00007FFE0FC50000-0x00007FFE0FE45000-memory.dmp

Filesize
2.0MB

Download
memory/4088-14-0x00007FFE0FC50000-0x00007FFE0FE45000-memory.dmp

Filesize
2.0MB

Download
memory/4088-13-0x00007FFE0FC50000-0x00007FFE0FE45000-memory.dmp

Filesize
2.0MB

Download
memory/4088-7-0x00007FFE0FC50000-0x00007FFE0FE45000-memory.dmp

Filesize
2.0MB

Download
memory/4088-6-0x00007FFE0FC50000-0x00007FFE0FE45000-memory.dmp

Filesize
2.0MB

Download
memory/4088-16-0x00007FFDCD640000-0x00007FFDCD650000-memory.dmp

Filesize
64KB

Download
memory/4088-38-0x00007FFE0FC50000-0x00007FFE0FE45000-memory.dmp

Filesize
2.0MB

Download
memory/4088-3-0x00007FFE0FCED000-0x00007FFE0FCEE000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads