7b2b2bf953b870564bff1f308381d9e20e84c2577bd8c854710e4f71438b2981

Analysis

max time kernel
146s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17-08-2024 11:58

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General

Target

a26fe5b5b736cc1081a5c5eefd1838c6_JaffaCakes118.exe
Size

866KB
MD5

a26fe5b5b736cc1081a5c5eefd1838c6
SHA1

b5df487c4098322a7badeceb1f97654c82f79e6d
SHA256

7b2b2bf953b870564bff1f308381d9e20e84c2577bd8c854710e4f71438b2981
SHA512

12258b3055c3b85521524e8900026cc99a153960dbea2c41bc3524f988352b7b3878c7dc32cadad2c402412ccff96ad0ff938e80e65b628ba6341e53d19be3f8
SSDEEP

24576:dSBkDPgPuoIPuL5uhYYA+rKa3Xgk8wEge/d:oBMPgJIPcuhYMW8wwG/d

Score

7^/10

discovery persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4876	ytb_oc.exe
5020	ytb_c.exe

Loads dropped DLL 1 IoCs

pid	Process
4720	a26fe5b5b736cc1081a5c5eefd1838c6_JaffaCakes118.exe

Adds Run key to start application 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\Run\ytbsys = "C:\\Users\\Admin\\AppData\\Local\\TempYtbn\\ytbsys.exe"	a26fe5b5b736cc1081a5c5eefd1838c6_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 3 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	a26fe5b5b736cc1081a5c5eefd1838c6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ytb_oc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ytb_c.exe

Modifies Internet Explorer settings 1 TTPs 4 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Internet Explorer\Download\RunInvalidSignatures = "1"	ytb_oc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Internet Explorer\Download\CheckExeSignatures = "no"	ytb_c.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Internet Explorer\Download\RunInvalidSignatures = "1"	ytb_c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Internet Explorer\Download\CheckExeSignatures = "no"	ytb_oc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
4876	ytb_oc.exe
4876	ytb_oc.exe
4876	ytb_oc.exe
4876	ytb_oc.exe
5020	ytb_c.exe
5020	ytb_c.exe
5020	ytb_c.exe
5020	ytb_c.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4720 wrote to memory of 4876	4720	a26fe5b5b736cc1081a5c5eefd1838c6_JaffaCakes118.exe	84
PID 4720 wrote to memory of 4876	4720	a26fe5b5b736cc1081a5c5eefd1838c6_JaffaCakes118.exe	84
PID 4720 wrote to memory of 4876	4720	a26fe5b5b736cc1081a5c5eefd1838c6_JaffaCakes118.exe	84
PID 4720 wrote to memory of 5020	4720	a26fe5b5b736cc1081a5c5eefd1838c6_JaffaCakes118.exe	102
PID 4720 wrote to memory of 5020	4720	a26fe5b5b736cc1081a5c5eefd1838c6_JaffaCakes118.exe	102
PID 4720 wrote to memory of 5020	4720	a26fe5b5b736cc1081a5c5eefd1838c6_JaffaCakes118.exe	102

C:\Users\Admin\AppData\Local\Temp\a26fe5b5b736cc1081a5c5eefd1838c6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a26fe5b5b736cc1081a5c5eefd1838c6_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4720
- C:\Users\Admin\AppData\Local\TempYtbn\ytb_oc.exe
  C:\Users\Admin\AppData\Local\TempYtbn\ytb_oc.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:4876
- C:\Users\Admin\AppData\Local\TempYtbn\ytb_c.exe
  C:\Users\Admin\AppData\Local\TempYtbn\ytb_c.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:5020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

Filesize
1KB

MD5
7fb5fa1534dcf77f2125b2403b30a0ee

SHA1
365d96812a69ac0a4611ea4b70a3f306576cc3ea

SHA256
33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f

SHA512
a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8

Filesize
436B

MD5
971c514f84bba0785f80aa1c23edfd79

SHA1
732acea710a87530c6b08ecdf32a110d254a54c8

SHA256
f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

SHA512
43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

Filesize
174B

MD5
a202d62ac5fb70687d7d25e139f47cb9

SHA1
1b303336e1221f4f5f790521cb21ed69cbe42028

SHA256
9dea5218e59238b6de22f5000a82017f23f40e4b5b4225a273e6260f57c02d7d

SHA512
608f8231d54a2a8eeda344acf34af7d69c745e867ac0a8d9a23fc63dfdba3f02ec37c8d9cae9101b170885c431073441231f01a3c9a42945843fdb8358322ea5

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8

Filesize
170B

MD5
30026c6b2e56e551b165f874fb1906e2

SHA1
eb23d8ceb40d542795a3d9b8eed27534d6e249eb

SHA256
141c665cfa569aa5073d35bdc0ad9557cb255e6f9f99899b54a6955576e25faf

SHA512
97cf0dfb8f7cbd367ea4e0a26a5a6ec70fdaef4008ac8c090096d7824b5a6297ff50a1650648669ea5195c32b7e37ab69f96b47a86472d34094a89c73ca23898

Download Submit
C:\Users\Admin\AppData\Local\TempYtbn\ytb_c.exe

Filesize
354KB

MD5
7d18bc75c1819350283c71c6fd3c4f58

SHA1
aa06961eb254365bf95ea1185932c3f71dfbbfa0

SHA256
9626df7ff25c020099504c1527025b056ef27b74e1d92d195996687344b1922b

SHA512
bd3d02f7e71aadb51f82b463826de1b0bcb4de18389c792783ae048e51fa11278f49118339a8b76f82b5d86af533e0b675a82e912196f4cadad5e199118cc941

Download Submit
C:\Users\Admin\AppData\Local\TempYtbn\ytb_oc.exe

Filesize
354KB

MD5
ed3e6f0637ea310cff9028c2ff310ee3

SHA1
1fd3563f0783b03e7ed2f9b5ee34b1cd5befbf90

SHA256
c08508d7deeb8f25e7d4a2c12030b4d9a4071152f6a2762351de02f7bca7d4a1

SHA512
9658d63b45e788740cefd7c107719379340d561697c5098bf22ba2217ed5936e40e17641d2eeab613aed58c186baeaf4b927d86326c348d4180e217ab9b18f73

Download Submit
C:\Users\Admin\AppData\Local\Temp\nscBE21.tmp\System.dll

Filesize
11KB

MD5
c17103ae9072a06da581dec998343fc1

SHA1
b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

SHA256
dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

SHA512
d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads