fd1b54bbb4f13d431804241df3a6530ce034998776ed94e2a6e35ddb5183c7f6

General

Target

fd1b54bbb4f13d431804241df3a6530ce034998776ed94e2a6e35ddb5183c7f6.xls
Size

67KB
MD5

42c7f22cb69f30a590c3def5bd4fd5b7
SHA1

e75f18ef1d47c6d8051576a10d533487b72a75c0
SHA256

fd1b54bbb4f13d431804241df3a6530ce034998776ed94e2a6e35ddb5183c7f6
SHA512

b0ec483f2f9c51cfa1ba4c536b8cc4536a6fe66408898a5777288009f10f341388564510369ccc4c36f3524169b17a5ac9d754583696c9ee07503333c7dfd2f1
SSDEEP

1536:5VKpb8rGYrMPe3q7Q0XV5xtezE8vG8UM+y9s1a6YG2jzQ0viPvDNHh9ey:fKpb8rGYrMPe3q7Q0XV5xtezE8vG8UMw

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://learnviaonline.com/wp-admin/qGb/

xlm40.dropper

http://kolejleri.com/wp-admin/REvup/

xlm40.dropper

http://stainedglassexpress.com/classes/05SkiiW9y4DDGvb6/

xlm40.dropper

http://milanstaffing.com/images/D4TRnDubF/

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	4612	1324	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4912	1324	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2024	1324	regsvr32.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1348	1324	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 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
1324	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1324	EXCEL.EXE
1324	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
1324	EXCEL.EXE
1324	EXCEL.EXE
1324	EXCEL.EXE
1324	EXCEL.EXE
1324	EXCEL.EXE
1324	EXCEL.EXE
1324	EXCEL.EXE
1324	EXCEL.EXE
1324	EXCEL.EXE
1324	EXCEL.EXE
1324	EXCEL.EXE
1324	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1324 wrote to memory of 4612	1324	EXCEL.EXE	87
PID 1324 wrote to memory of 4612	1324	EXCEL.EXE	87
PID 1324 wrote to memory of 4912	1324	EXCEL.EXE	89
PID 1324 wrote to memory of 4912	1324	EXCEL.EXE	89
PID 1324 wrote to memory of 2024	1324	EXCEL.EXE	90
PID 1324 wrote to memory of 2024	1324	EXCEL.EXE	90
PID 1324 wrote to memory of 1348	1324	EXCEL.EXE	91
PID 1324 wrote to memory of 1348	1324	EXCEL.EXE	91

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\fd1b54bbb4f13d431804241df3a6530ce034998776ed94e2a6e35ddb5183c7f6.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:1324
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uxevr1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4612
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uxevr2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4912
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uxevr3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:2024
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\uxevr4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1348

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
a38b0710fba2eb6d79ad2b7a1ccd5d7d

SHA1
09a089132e430a4ba7c1787e2c0d5fd1a8d9d485

SHA256
2982bd0b75c22a58210818beb9228de3d9802c9a9b23bb0b1e17cc6136604e85

SHA512
d49608bf2577f13181918465b36db78171bd26796297f63a2cc325ee1355c7a3307857286501227642d5266d4e479a75f0bd4c2ef05a5e26480f0cc272b35c14

Download Submit
C:\Users\Admin\uxevr2.ocx

Filesize
24KB

MD5
58d19cc5edaa8d7db774d621f0d644c0

SHA1
5bbbf94d19937e3446671414d63850fb437461c9

SHA256
47596e13f2e4180d3cab0ad50011d25bb82db52234cd92cabb60ff8f841353cd

SHA512
080330e83c6f55f1f7989f021f8c68f5e53de1fa155bff76b39b867b4693f2112982e6e1428a6a35c785769d2d9b05082b56f6e9ef6e8536e531cc46bc56a674

Download Submit
memory/1324-15-0x00007FFCAFD50000-0x00007FFCAFD60000-memory.dmp

Filesize
64KB

Download
memory/1324-14-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/1324-4-0x00007FFCB26B0000-0x00007FFCB26C0000-memory.dmp

Filesize
64KB

Download
memory/1324-7-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/1324-10-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/1324-11-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/1324-13-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/1324-12-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/1324-1-0x00007FFCB26B0000-0x00007FFCB26C0000-memory.dmp

Filesize
64KB

Download
memory/1324-0-0x00007FFCB26B0000-0x00007FFCB26C0000-memory.dmp

Filesize
64KB

Download
memory/1324-16-0x00007FFCAFD50000-0x00007FFCAFD60000-memory.dmp

Filesize
64KB

Download
memory/1324-9-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/1324-8-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/1324-6-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/1324-5-0x00007FFCB26B0000-0x00007FFCB26C0000-memory.dmp

Filesize
64KB

Download
memory/1324-2-0x00007FFCB26B0000-0x00007FFCB26C0000-memory.dmp

Filesize
64KB

Download
memory/1324-37-0x00007FFCF2630000-0x00007FFCF2825000-memory.dmp

Filesize
2.0MB

Download
memory/1324-3-0x00007FFCF26CD000-0x00007FFCF26CE000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads