46bb10b0974c71eed792c5fb84e67a7011427b5814cef38e1665de1e7842cbf3

General

Target

04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe
Size

15KB
MD5

04f28f8bc08ee9a07052713b813e5ea4
SHA1

ffb811af29ced07121e8985481e39fa650979b9d
SHA256

46bb10b0974c71eed792c5fb84e67a7011427b5814cef38e1665de1e7842cbf3
SHA512

217997494edc392ed7ab751a7b2f26063a8efc3c17f112bc7f32ca91aa511dfe9b52ef8dbae25943713be89609d20b4b03a42e04cf0b04053b07f03ef9fa2a42
SSDEEP

384:1Bo/tghaQ3NDoPYGWt7sAQuvKWuAVFYlGf80B:1BmtgDqfWtsA9oAeu

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\lweurqhx.dll = "{71A78CD4-E470-4a18-8457-E0E0283DD507}"	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe

Loads dropped DLL 1 IoCs

pid	Process
4372	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\lweurqhx.tmp	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\lweurqhx.nls	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\lweurqhx.tmp	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{71A78CD4-E470-4a18-8457-E0E0283DD507}	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{71A78CD4-E470-4a18-8457-E0E0283DD507}\InProcServer32	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{71A78CD4-E470-4a18-8457-E0E0283DD507}\InProcServer32\ = "C:\\Windows\\SysWow64\\lweurqhx.dll"	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{71A78CD4-E470-4a18-8457-E0E0283DD507}\InProcServer32\ThreadingModel = "Apartment"	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4372	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe
4372	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe
4372	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe
4372	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
4372	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe
4372	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe
4372	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4372 wrote to memory of 3448	4372	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe	102
PID 4372 wrote to memory of 3448	4372	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe	102
PID 4372 wrote to memory of 3448	4372	04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe	102

C:\Users\Admin\AppData\Local\Temp\04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\04f28f8bc08ee9a07052713b813e5ea4_JaffaCakes118.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4372
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\67EC.tmp.bat
  2⤵
  PID:3448

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 --field-trial-handle=3772,i,14486271492189381216,15799931579469722648,262144 --variations-seed-version --mojo-platform-channel-handle=4116 /prefetch:8
1⤵
PID:4412

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\67EC.tmp.bat

Filesize
207B

MD5
35b0143c95bf3f17c181a8869be10198

SHA1
23b929a2ecb8fd8e7e7979ad5ddb7f769445a185

SHA256
a9612c3432db166c5fb2a53e30ac5205223b19a3fca790e87f0cac52415b7a99

SHA512
d96346333021e6a5cec1770f29de67bcd9c38fa5e87fb47b3f9ce23910dbf9f29287cec2ec3bff79b4488a423514850e12e3b82cf7af0d71f55f1a232eaae8d6

Download Submit
C:\Windows\SysWOW64\lweurqhx.nls

Filesize
428B

MD5
cf948e1aff20b24cf98392d3cf768762

SHA1
61d9942dab590f5184ef8291178366a305be72b4

SHA256
f58dd2d67d97f26968b8d9c24c2f616d8d5d69840443e87e715a700be7ef3d33

SHA512
94ef3b727fc9145019dca7da4639e909d250199b89f7535b481e5a059676762f211485b2bd6b823da3c3b7d55cd5e18cd10627878b6e77e860bcb73d0aae68f4

Download Submit
C:\Windows\SysWOW64\lweurqhx.tmp

Filesize
687KB

MD5
f742f9a61fde96c0709274b1a27e1e05

SHA1
eb0e7b4e1d5936bacc35848e1341fbbc1f4d4675

SHA256
ab6af2af54d2456c933401ea30a204bc1a32811986f45bff7d4fb5deddb93119

SHA512
4cc5b530a6b53b3a3fbcf8dbcdc054762a8a22937fa016a5d121c04dcf46eb2c34544a6714dbe3d5203a7ae7680d8406223a30ec4f439804f9ef4c4bf428b99a

Download Submit
memory/4372-17-0x0000000020000000-0x0000000020009000-memory.dmp

Filesize
36KB

Download
memory/4372-21-0x0000000020000000-0x0000000020009000-memory.dmp

Filesize
36KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads