b11d30be3dd81cabd66d1548ec3cdcde80acf32dfcb55c17234c0a1ee46a6fb6

General

Target

b11d30be3dd81cabd66d1548ec3cdcde80acf32dfcb55c17234c0a1ee46a6fb6.xls
Size

96KB
MD5

a870508b049f2ddd9f73b34821c14a73
SHA1

f8022c0d140303bb44cc4d55b10b3e682ba897a0
SHA256

b11d30be3dd81cabd66d1548ec3cdcde80acf32dfcb55c17234c0a1ee46a6fb6
SHA512

e1d4cb293cc3e9b29985a89726d1a3a09d1bc4593b9d8509d729668f1bf96b1a888f6db2321dc3c4d6f8b4eeaebefc74cc51157e7ec564caafb2482f82f480ed
SSDEEP

1536:7kKpb8rGYrMPe3q7Q0XV5xtezEsi8/dg4jHuS4hcTO97v7UYdEJm37:IKpb8rGYrMPe3q7Q0XV5xtezEsi8/dgz

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://fisika.mipa.uns.ac.id/reseller/img/nRAvAgoY8Y/

xlm40.dropper

http://greycoconut.com/edm/71qUA/

xlm40.dropper

http://zonainformatica.es/tienda/XCHJmidSYTkE/

xlm40.dropper

http://balletmagazine.ro/wp-content/9VrMPV/

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	3328	4412	regsvr32.exe	83
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1604	4412	regsvr32.exe	83
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3828	4412	regsvr32.exe	83
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4564	4412	regsvr32.exe	83

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
4412	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4412	EXCEL.EXE
4412	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
4412	EXCEL.EXE
4412	EXCEL.EXE
4412	EXCEL.EXE
4412	EXCEL.EXE
4412	EXCEL.EXE
4412	EXCEL.EXE
4412	EXCEL.EXE
4412	EXCEL.EXE
4412	EXCEL.EXE
4412	EXCEL.EXE
4412	EXCEL.EXE
4412	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 3328	4412	EXCEL.EXE	85
PID 4412 wrote to memory of 3328	4412	EXCEL.EXE	85
PID 4412 wrote to memory of 1604	4412	EXCEL.EXE	94
PID 4412 wrote to memory of 1604	4412	EXCEL.EXE	94
PID 4412 wrote to memory of 3828	4412	EXCEL.EXE	95
PID 4412 wrote to memory of 3828	4412	EXCEL.EXE	95
PID 4412 wrote to memory of 4564	4412	EXCEL.EXE	96
PID 4412 wrote to memory of 4564	4412	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\b11d30be3dd81cabd66d1548ec3cdcde80acf32dfcb55c17234c0a1ee46a6fb6.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:4412
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3328
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
  2⤵
  - Process spawned unexpected child process
  PID:1604
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
  2⤵
  - Process spawned unexpected child process
  PID:3828
- C:\Windows\System32\regsvr32.exe
  C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
  2⤵
  - Process spawned unexpected child process
  PID:4564

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
5KB

MD5
192a1e0e72ad0526039af6a8138ced51

SHA1
5ae6a62e534a4c934a247dbbcfe37b7900327413

SHA256
9c65244fcd793f1dd1614d0f011c1e3fc62347f8fa0d7088d2f353735e2f9d6b

SHA512
2844842c30db2dd6860a1aabde369a30ef73a89b6e2cf58adf08a7973d4b72d150a02812351aa1a68f9ca4ceac0329320e6f398cc17f355cb2caf45ec110889e

Download Submit
C:\Users\Admin\soci2.ocx

Filesize
36KB

MD5
3b79e62476916ff33ddc0668a0898e6d

SHA1
fe4f73a8019a0407cec5e2eb0c344adc4ab73bae

SHA256
418099d0e61f486fc52144bd0b16c8833b893eb9203163835c59045ca9782b81

SHA512
3b42ec3d6c8d68824e43ea8bd0b62c4434fd995f8dc93c3a278e229168b080c5920b226c02236bd98cd7ddadab19536dd05a4e4f35323393ac9ef766b0759bfa

Download Submit
memory/4412-12-0x00007FFF66910000-0x00007FFF66920000-memory.dmp

Filesize
64KB

Download
memory/4412-6-0x00007FFFA91F0000-0x00007FFFA93E5000-memory.dmp

Filesize
2.0MB

Download
memory/4412-8-0x00007FFFA91F0000-0x00007FFFA93E5000-memory.dmp

Filesize
2.0MB

Download
memory/4412-9-0x00007FFFA91F0000-0x00007FFFA93E5000-memory.dmp

Filesize
2.0MB

Download
memory/4412-7-0x00007FFFA91F0000-0x00007FFFA93E5000-memory.dmp

Filesize
2.0MB

Download
memory/4412-10-0x00007FFFA91F0000-0x00007FFFA93E5000-memory.dmp

Filesize
2.0MB

Download
memory/4412-13-0x00007FFFA91F0000-0x00007FFFA93E5000-memory.dmp

Filesize
2.0MB

Download
memory/4412-11-0x00007FFF66910000-0x00007FFF66920000-memory.dmp

Filesize
64KB

Download
memory/4412-2-0x00007FFF69270000-0x00007FFF69280000-memory.dmp

Filesize
64KB

Download
memory/4412-0-0x00007FFF69270000-0x00007FFF69280000-memory.dmp

Filesize
64KB

Download
memory/4412-5-0x00007FFF69270000-0x00007FFF69280000-memory.dmp

Filesize
64KB

Download
memory/4412-1-0x00007FFF69270000-0x00007FFF69280000-memory.dmp

Filesize
64KB

Download
memory/4412-16-0x00007FFFA91F0000-0x00007FFFA93E5000-memory.dmp

Filesize
2.0MB

Download
memory/4412-17-0x00007FFFA91F0000-0x00007FFFA93E5000-memory.dmp

Filesize
2.0MB

Download
memory/4412-19-0x00007FFFA91F0000-0x00007FFFA93E5000-memory.dmp

Filesize
2.0MB

Download
memory/4412-18-0x00007FFFA91F0000-0x00007FFFA93E5000-memory.dmp

Filesize
2.0MB

Download
memory/4412-15-0x00007FFFA91F0000-0x00007FFFA93E5000-memory.dmp

Filesize
2.0MB

Download
memory/4412-14-0x00007FFFA91F0000-0x00007FFFA93E5000-memory.dmp

Filesize
2.0MB

Download
memory/4412-21-0x00007FFFA91F0000-0x00007FFFA93E5000-memory.dmp

Filesize
2.0MB

Download
memory/4412-22-0x00007FFFA91F0000-0x00007FFFA93E5000-memory.dmp

Filesize
2.0MB

Download
memory/4412-20-0x00007FFFA91F0000-0x00007FFFA93E5000-memory.dmp

Filesize
2.0MB

Download
memory/4412-4-0x00007FFF69270000-0x00007FFF69280000-memory.dmp

Filesize
64KB

Download
memory/4412-41-0x00007FFFA91F0000-0x00007FFFA93E5000-memory.dmp

Filesize
2.0MB

Download
memory/4412-3-0x00007FFFA928D000-0x00007FFFA928E000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads