fc519e674d968685aef5c562eb84b1066f121d55108a4a1f2e74a5274eb3779c

General

Target

db5bd9950f2363e0621b32cfc683c07f_JaffaCakes118.xls
Size

259KB
MD5

db5bd9950f2363e0621b32cfc683c07f
SHA1

d04d53792f018fc754ed113438531b56b9433be3
SHA256

fc519e674d968685aef5c562eb84b1066f121d55108a4a1f2e74a5274eb3779c
SHA512

3c9e72756488d21fe7a626ec5d4c2720f28b8038988a8693b01f568abddd54c1a26426f52ab68f4332a5fc9d508039f172fec331ac3e76bdbc322a7be75e7dd1
SSDEEP

6144:6FUjl6Nc7yRzs1H75wkZUgsRQ6UHXtD+Iv50ArEMUih0e36UA6S:W

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	4236	440	cmd.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4024	440	cmd.exe	81
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4272	440	cmd.exe	81

Suspicious Office macro 1 IoCs

Office document equipped with 4.0 macros.

macro xlm

resource	yara_rule
behavioral2/files/0x000b000000023b6d-102.dat	office_xlm_macros

Deletes itself 1 IoCs

pid	Process
440	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 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

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\6A975E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
440	EXCEL.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
440	EXCEL.EXE
440	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
440	EXCEL.EXE
440	EXCEL.EXE
440	EXCEL.EXE
440	EXCEL.EXE
440	EXCEL.EXE
440	EXCEL.EXE
440	EXCEL.EXE
440	EXCEL.EXE
440	EXCEL.EXE
440	EXCEL.EXE
440	EXCEL.EXE
440	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 440 wrote to memory of 4272	440	EXCEL.EXE	86
PID 440 wrote to memory of 4272	440	EXCEL.EXE	86
PID 440 wrote to memory of 4024	440	EXCEL.EXE	87
PID 440 wrote to memory of 4024	440	EXCEL.EXE	87
PID 440 wrote to memory of 4236	440	EXCEL.EXE	88
PID 440 wrote to memory of 4236	440	EXCEL.EXE	88
PID 4272 wrote to memory of 1140	4272	cmd.exe	94
PID 4272 wrote to memory of 1140	4272	cmd.exe	94

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1140	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\db5bd9950f2363e0621b32cfc683c07f_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:440
- 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:4272
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:1140
- 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:4024
- 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:4236

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\db5bd9950f2363e0621b32cfc683c07f_JaffaCakes118.xls

Filesize
278KB

MD5
61a25fbced372651d6e9c8780c6ee8fa

SHA1
e2238c45996218d7630c6d54824109dd7f29cd9e

SHA256
59b5797ee07cc12d8a7852865fd8b552c2b9d53eef0428d9c62379522547bf71

SHA512
4622fcafe3910c821f05d906f4e882c81a17ac757a6ff12a00eceb8e6c0006bc14b2197a1c2e5c99ebc7e257f27b4b7bb17106d3ff1b100261968acc12ab74e7

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

Filesize
683B

MD5
c6a49fd2d146e7880b78d77df387711c

SHA1
f26c74e4bc436e3def060e8e247bcf9a62299c2f

SHA256
a1baccbc2b3725c6faffc352db07eea4c56c2a72fbe8e64da3e590e5bbba0ec3

SHA512
694a0dd86f4ef0b4352399b28402f22133fcbab5d8e9448bf33e71f119b3999901fec3f6ec48ecbda909c73c65225ac6f909affa0b1792efaf4632523b1ec9e8

Download Submit
memory/440-14-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-3-0x00007FFC1908D000-0x00007FFC1908E000-memory.dmp

Filesize
4KB

Download
memory/440-2-0x00007FFBD9070000-0x00007FFBD9080000-memory.dmp

Filesize
64KB

Download
memory/440-6-0x00007FFBD9070000-0x00007FFBD9080000-memory.dmp

Filesize
64KB

Download
memory/440-7-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-8-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-10-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-9-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-11-0x00007FFBD6710000-0x00007FFBD6720000-memory.dmp

Filesize
64KB

Download
memory/440-5-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-12-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-13-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-0-0x00007FFBD9070000-0x00007FFBD9080000-memory.dmp

Filesize
64KB

Download
memory/440-4-0x00007FFBD9070000-0x00007FFBD9080000-memory.dmp

Filesize
64KB

Download
memory/440-55-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-43-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-53-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-52-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-15-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-58-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-57-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-56-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-54-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-71-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-70-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-16-0x00007FFBD6710000-0x00007FFBD6720000-memory.dmp

Filesize
64KB

Download
memory/440-107-0x00007FFC18FF0000-0x00007FFC191E5000-memory.dmp

Filesize
2.0MB

Download
memory/440-1-0x00007FFBD9070000-0x00007FFBD9080000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads