1cf53ae230e964db0952b9c5945fe5bd09cb4b03c1f40eeb0a2532d8781f3d5a

General

Target

1cf53ae230e964db0952b9c5945fe5bd09cb4b03c1f40eeb0a2532d8781f3d5a.xls
Size

91KB
MD5

fa89fa3148ea65e327e5337f0dd10412
SHA1

d0481edf95da12453f4184020d8599dac1a1f33a
SHA256

1cf53ae230e964db0952b9c5945fe5bd09cb4b03c1f40eeb0a2532d8781f3d5a
SHA512

53115a2aa34c8a282fd7eb588c51d728eec5246dfbcec85541131973d90014ad6b5097eee611ebfa0ca25af2e33369f66711112476629dd6006ba784de96fe0c
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	2972	4656	regsvr32.exe	84
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3220	4656	regsvr32.exe	84
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3576	4656	regsvr32.exe	84
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	888	4656	regsvr32.exe	84

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
4656	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4656	EXCEL.EXE
4656	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4656	EXCEL.EXE
4656	EXCEL.EXE
4656	EXCEL.EXE
4656	EXCEL.EXE
4656	EXCEL.EXE
4656	EXCEL.EXE
4656	EXCEL.EXE
4656	EXCEL.EXE
4656	EXCEL.EXE
4656	EXCEL.EXE
4656	EXCEL.EXE
4656	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4656 wrote to memory of 2972	4656	EXCEL.EXE	89
PID 4656 wrote to memory of 2972	4656	EXCEL.EXE	89
PID 4656 wrote to memory of 3220	4656	EXCEL.EXE	92
PID 4656 wrote to memory of 3220	4656	EXCEL.EXE	92
PID 4656 wrote to memory of 3576	4656	EXCEL.EXE	93
PID 4656 wrote to memory of 3576	4656	EXCEL.EXE	93
PID 4656 wrote to memory of 888	4656	EXCEL.EXE	97
PID 4656 wrote to memory of 888	4656	EXCEL.EXE	97

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\1cf53ae230e964db0952b9c5945fe5bd09cb4b03c1f40eeb0a2532d8781f3d5a.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:4656
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:2972
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:3220
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:3576
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx
  2⤵
  - Process spawned unexpected child process
  PID:888

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

Replay Monitor

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Downloads

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

Filesize
3KB

MD5
716e31b6f686e3198770635c35ce8114

SHA1
c043b9fda9c64d43ad6fe9960f676dbb5c0cd3db

SHA256
460d05efb0f497b14aa06abd276bd20a809b3f00d4da07144018322431b2e38f

SHA512
733b4878247d2e802f4950b1d34521a7184dd4daaf64a8ae2c2512e1c80c7bbd1e8433560912ca22d788b533a95dd0cdafa89934407a9fee33842b9e94849646

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
0fe9c99ff4ebce2a6a3a02cf4fbcf457

SHA1
433cffab2af2e7ecc8b3eaf086f4f6b56b37a66b

SHA256
d171faf76ded3ee0cf148f8fd44d074e0244c8ea9fb8a066fa2b177bb948d02d

SHA512
fb6c88d61380886cee52982c98224e00625f82aed545da0b6f74a23bca92d21ae7a64130517f2e1d882de1e59fd03feacfb2997c80f8a0602e9a5c5c0486bd71

Download Submit
memory/4656-14-0x00007FFB7C760000-0x00007FFB7C770000-memory.dmp

Filesize
64KB

Download
memory/4656-16-0x00007FFBBED30000-0x00007FFBBEF25000-memory.dmp

Filesize
2.0MB

Download
memory/4656-5-0x00007FFB7EDB0000-0x00007FFB7EDC0000-memory.dmp

Filesize
64KB

Download
memory/4656-9-0x00007FFBBED30000-0x00007FFBBEF25000-memory.dmp

Filesize
2.0MB

Download
memory/4656-8-0x00007FFBBED30000-0x00007FFBBEF25000-memory.dmp

Filesize
2.0MB

Download
memory/4656-12-0x00007FFBBED30000-0x00007FFBBEF25000-memory.dmp

Filesize
2.0MB

Download
memory/4656-11-0x00007FFBBED30000-0x00007FFBBEF25000-memory.dmp

Filesize
2.0MB

Download
memory/4656-13-0x00007FFB7C760000-0x00007FFB7C770000-memory.dmp

Filesize
64KB

Download
memory/4656-10-0x00007FFBBED30000-0x00007FFBBEF25000-memory.dmp

Filesize
2.0MB

Download
memory/4656-0-0x00007FFBBEDCD000-0x00007FFBBEDCE000-memory.dmp

Filesize
4KB

Download
memory/4656-17-0x00007FFBBED30000-0x00007FFBBEF25000-memory.dmp

Filesize
2.0MB

Download
memory/4656-4-0x00007FFB7EDB0000-0x00007FFB7EDC0000-memory.dmp

Filesize
64KB

Download
memory/4656-15-0x00007FFBBED30000-0x00007FFBBEF25000-memory.dmp

Filesize
2.0MB

Download
memory/4656-19-0x00007FFBBED30000-0x00007FFBBEF25000-memory.dmp

Filesize
2.0MB

Download
memory/4656-18-0x00007FFBBED30000-0x00007FFBBEF25000-memory.dmp

Filesize
2.0MB

Download
memory/4656-7-0x00007FFBBED30000-0x00007FFBBEF25000-memory.dmp

Filesize
2.0MB

Download
memory/4656-6-0x00007FFBBED30000-0x00007FFBBEF25000-memory.dmp

Filesize
2.0MB

Download
memory/4656-2-0x00007FFB7EDB0000-0x00007FFB7EDC0000-memory.dmp

Filesize
64KB

Download
memory/4656-3-0x00007FFB7EDB0000-0x00007FFB7EDC0000-memory.dmp

Filesize
64KB

Download
memory/4656-58-0x00007FFBBEDCD000-0x00007FFBBEDCE000-memory.dmp

Filesize
4KB

Download
memory/4656-59-0x00007FFBBED30000-0x00007FFBBEF25000-memory.dmp

Filesize
2.0MB

Download
memory/4656-60-0x00007FFBBED30000-0x00007FFBBEF25000-memory.dmp

Filesize
2.0MB

Download
memory/4656-61-0x00007FFBBED30000-0x00007FFBBEF25000-memory.dmp

Filesize
2.0MB

Download
memory/4656-1-0x00007FFB7EDB0000-0x00007FFB7EDC0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads