1885a7e7e091f3363c7e809515a77bc9883f44bb6a81a539c852fd0d2438513c

General

Target

dcab0482f019071dc72d68380cb94f54_JaffaCakes118.xls
Size

146KB
MD5

dcab0482f019071dc72d68380cb94f54
SHA1

047f343cd5594b54acb37e14336c3f587777afe8
SHA256

1885a7e7e091f3363c7e809515a77bc9883f44bb6a81a539c852fd0d2438513c
SHA512

e234d081f863cca83fb93449e2d64e3aa9aa271e6f51b9cd0d6e68ceca92c930f3812dd35c8f0d6af9915213e079b499401eb097af3e3d030aa192fb6d57f05a
SSDEEP

3072:a/1Bbai7+WVbrzAZD7ITk9CU0JtXwk5k62TW:y3p7cDi

Score

10^/10

defense_evasion macro xlm

Malware Config

Signatures

Process spawned unexpected child process 3 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	1588	1792	cmd.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	732	1792	cmd.exe	82
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1300	1792	cmd.exe	82

Suspicious Office macro 1 IoCs

Office document equipped with 4.0 macros.

macro xlm

resource	yara_rule
behavioral2/files/0x0008000000023c89-100.dat	office_xlm_macros

Deletes itself 1 IoCs

pid	Process
1792	EXCEL.EXE

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

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 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

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\72A75E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1792	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1792	EXCEL.EXE
1792	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
1792	EXCEL.EXE
1792	EXCEL.EXE
1792	EXCEL.EXE
1792	EXCEL.EXE
1792	EXCEL.EXE
1792	EXCEL.EXE
1792	EXCEL.EXE
1792	EXCEL.EXE
1792	EXCEL.EXE
1792	EXCEL.EXE
1792	EXCEL.EXE
1792	EXCEL.EXE
1792	EXCEL.EXE
1792	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 1300	1792	EXCEL.EXE	87
PID 1792 wrote to memory of 1300	1792	EXCEL.EXE	87
PID 1792 wrote to memory of 732	1792	EXCEL.EXE	88
PID 1792 wrote to memory of 732	1792	EXCEL.EXE	88
PID 1792 wrote to memory of 1588	1792	EXCEL.EXE	89
PID 1792 wrote to memory of 1588	1792	EXCEL.EXE	89
PID 1300 wrote to memory of 5040	1300	cmd.exe	93
PID 1300 wrote to memory of 5040	1300	cmd.exe	93

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
5040	attrib.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\dcab0482f019071dc72d68380cb94f54_JaffaCakes118.xls"
1⤵
- Deletes itself
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1792
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:1300
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:5040
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  PID:732
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  PID:1588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

1

T1564

Hidden Files and Directories

1

T1564.001

Indicator Removal

1

T1070

File Deletion

1

T1070.004

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\Local\Temp\dcab0482f019071dc72d68380cb94f54_JaffaCakes118.xls

Filesize
156KB

MD5
74a3e43277bffaeb52e796a1835badb6

SHA1
29e91b66fe35afa9ef140f0929e2025f957a1618

SHA256
1af3e78b2fae33f2789eee130975c182a2ad1ee99b995d2b335adbac8225b306

SHA512
e445a642367280c29084efa536e0cebee7569e9f413c1ea379e22c8725264bc49cdd8f6f00fe15e211b9cb6cba6128d63513d570ab32d930e29816d08bfcf943

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

Filesize
1KB

MD5
4dc10c805cdf227b36dcaf263f4f3586

SHA1
042c4f7f84952176590d429d578ea8420d2efe95

SHA256
a61f6d341744557895b96f366c891dc0feb5fcee6721159560a63d0f078959b6

SHA512
cabfceb30e8976bae00a3387c5d3c3608b45ccf21e4f15946ab8992dee506399a1670e3bcd26c139fc1621e2b5fd9a29e3c014eb43b46cd8ebd9ce60c85a4409

Download Submit
memory/1792-14-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-7-0x00007FF9C0E70000-0x00007FF9C0E80000-memory.dmp

Filesize
64KB

Download
memory/1792-52-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-5-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-51-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-4-0x00007FF9C0E70000-0x00007FF9C0E80000-memory.dmp

Filesize
64KB

Download
memory/1792-8-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-11-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-10-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-9-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-12-0x00007FF9BEE10000-0x00007FF9BEE20000-memory.dmp

Filesize
64KB

Download
memory/1792-53-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-3-0x00007FFA00E8D000-0x00007FFA00E8E000-memory.dmp

Filesize
4KB

Download
memory/1792-13-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-6-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-2-0x00007FF9C0E70000-0x00007FF9C0E80000-memory.dmp

Filesize
64KB

Download
memory/1792-15-0x00007FF9BEE10000-0x00007FF9BEE20000-memory.dmp

Filesize
64KB

Download
memory/1792-50-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-59-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-58-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-60-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-68-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-69-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-0-0x00007FF9C0E70000-0x00007FF9C0E80000-memory.dmp

Filesize
64KB

Download
memory/1792-102-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-106-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-107-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-108-0x00007FFA00DF0000-0x00007FFA00FE5000-memory.dmp

Filesize
2.0MB

Download
memory/1792-1-0x00007FF9C0E70000-0x00007FF9C0E80000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads