dbc40ebfee3142451c4f99972cc67e9d2b112419cea76cd4e547bc67928a79c4

Analysis

max time kernel
145s
max time network
121s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
02/10/2024, 18:08

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General

Target

0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
Size

435KB
MD5

0bea8d3669e855e32547b40dafba6fb2
SHA1

82e7e06a3005489895ec9580c7d466bb7beb35dd
SHA256

dbc40ebfee3142451c4f99972cc67e9d2b112419cea76cd4e547bc67928a79c4
SHA512

33d8851ff99937c92efe8ff248953fe22b42d101afacf223e174376ba065e7f9d4cb61f99cb34adaed1f64029f843df381bcf41f17dbfbb98737ec6f20dec393
SSDEEP

6144:k82p4pFHfzMepymgWPnviP6Koa0nArn20l96tCF2eKNBDRlC8HQQDhy5OwbYBilz:Cp4pNfz3ymJnJ8QCFkxCaQTOl2z

Score

10^/10

discovery persistence ransomware

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe"	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe"	HelpMe.exe

Renames multiple (91) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	HelpMe.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1080	HelpMe.exe

Loads dropped DLL 31 IoCs

pid	Process
2200	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
2200	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe
1080	HelpMe.exe

Enumerates connected drives 3 TTPs 46 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\Y:	HelpMe.exe
File opened (read-only)	\??\M:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\V:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\H:	HelpMe.exe
File opened (read-only)	\??\J:	HelpMe.exe
File opened (read-only)	\??\X:	HelpMe.exe
File opened (read-only)	\??\U:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\V:	HelpMe.exe
File opened (read-only)	\??\W:	HelpMe.exe
File opened (read-only)	\??\Z:	HelpMe.exe
File opened (read-only)	\??\T:	HelpMe.exe
File opened (read-only)	\??\L:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\R:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\X:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\M:	HelpMe.exe
File opened (read-only)	\??\S:	HelpMe.exe
File opened (read-only)	\??\B:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\Q:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\W:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\B:	HelpMe.exe
File opened (read-only)	\??\A:	HelpMe.exe
File opened (read-only)	\??\O:	HelpMe.exe
File opened (read-only)	\??\R:	HelpMe.exe
File opened (read-only)	\??\E:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\K:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\P:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\Y:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\Z:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\U:	HelpMe.exe
File opened (read-only)	\??\I:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\J:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\L:	HelpMe.exe
File opened (read-only)	\??\N:	HelpMe.exe
File opened (read-only)	\??\P:	HelpMe.exe
File opened (read-only)	\??\A:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\G:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\N:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\O:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\G:	HelpMe.exe
File opened (read-only)	\??\K:	HelpMe.exe
File opened (read-only)	\??\Q:	HelpMe.exe
File opened (read-only)	\??\H:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\S:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\T:	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened (read-only)	\??\E:	HelpMe.exe
File opened (read-only)	\??\I:	HelpMe.exe

Drops autorun.inf file 1 TTPs 3 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	F:\AUTORUN.INF	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened for modification	C:\AUTORUN.INF	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
File opened for modification	F:\AUTORUN.INF	HelpMe.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\HelpMe.exe	HelpMe.exe
File created	C:\Windows\SysWOW64\HelpMe.exe	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HelpMe.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 1080	2200	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe	30
PID 2200 wrote to memory of 1080	2200	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe	30
PID 2200 wrote to memory of 1080	2200	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe	30
PID 2200 wrote to memory of 1080	2200	0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\0bea8d3669e855e32547b40dafba6fb2_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Drops startup file
- Loads dropped DLL
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2200
- C:\Windows\SysWOW64\HelpMe.exe
  C:\Windows\system32\HelpMe.exe
  2⤵
  - Modifies WinLogon for persistence
  - Drops startup file
  - Executes dropped EXE
  - Loads dropped DLL
  - Enumerates connected drives
  - Drops autorun.inf file
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:1080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\$Recycle.Bin\S-1-5-21-3551809350-4263495960-1443967649-1000\desktop.ini.exe

Filesize
436KB

MD5
fd9706ceda5c02288f86517d4ea21dd0

SHA1
a019d64920e61012bf7dc8804e8ac2716462c239

SHA256
4f81babe0b572ef94dc73afdc987045e228067eb826beb860594ab04cfc94a70

SHA512
5d2d455b830876e7b0b48b01a7ea5fe2a7644f1abb5febb5a82117c321175d91ac8c77179a798acc628cc632c9cffaf17967e01bdf8f63f80bbcee24233285c8

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

Filesize
1KB

MD5
12e02981d263bec1cbf18946c1dce196

SHA1
9b687950ec6e29438071e2c4be310c92855f96cd

SHA256
f523b8e056ab2b1c6338be3e1f52c956e282c646a137780cf553bd2ca08848f4

SHA512
2c6aff3d907976baa8a6b0f8886baf0f5c0f4f343dcc7ae7bcbc15d7892c093526bb2933ab7bfc727eb7db75f5397a0e18dee5da6731c3fdff56cb3e70bd956b

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

Filesize
954B

MD5
ca998ac34b3f870be1bfce1a281c782d

SHA1
478238ff8d0cbbbedc0ea344f8585bfd964e8d79

SHA256
f6f660a4aae428c13fc650478ebb7e9bc483d084ae9289e19d7d22cb2a6a961a

SHA512
46e081d4d48a6e546540d70b06e48cf65ec6ad8072a4a5822b526a729836f7f5982fc3a6979c1b537e58a5e5c7730029a169d20dbd9fbfdce68559217497dfa8

Download Submit
F:\AUTORUN.INF

Filesize
145B

MD5
ca13857b2fd3895a39f09d9dde3cca97

SHA1
8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

SHA256
cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

SHA512
55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

Download Submit
F:\AutoRun.exe

Filesize
435KB

MD5
0bea8d3669e855e32547b40dafba6fb2

SHA1
82e7e06a3005489895ec9580c7d466bb7beb35dd

SHA256
dbc40ebfee3142451c4f99972cc67e9d2b112419cea76cd4e547bc67928a79c4

SHA512
33d8851ff99937c92efe8ff248953fe22b42d101afacf223e174376ba065e7f9d4cb61f99cb34adaed1f64029f843df381bcf41f17dbfbb98737ec6f20dec393

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
435KB

MD5
73165a3b64fea356419ebebf93e78687

SHA1
bdec62cf2d946543a7649262dfdbfb595402615e

SHA256
7d46374fbc379a7e4d878b80f6f97fd1e9f46539f6d21e8c6b89dc650ad06a08

SHA512
f2ed454fe06253c6804cd49929bd15ef32d4e6ae8d529b2a0fa2fc409b179c36e161c16091f0cdab951e1ba0892847ac5affe04ddf7b8839bcd77dbb58568f0d

Download Submit
memory/1080-9-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2200-1-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads