85f49b8b9f4e3a84ccd1ac1ad242f2ef67b26ab5afdf2b0a1cf9c047ad60f12f

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-09-2024 14:15

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General

Target

d48c86260231082bf2206df014a9e899_JaffaCakes118.exe
Size

1.0MB
MD5

d48c86260231082bf2206df014a9e899
SHA1

2b75a2264c50fd6305cd256661c17e045c98017c
SHA256

85f49b8b9f4e3a84ccd1ac1ad242f2ef67b26ab5afdf2b0a1cf9c047ad60f12f
SHA512

d509e8d6c4d94eef6bd8cf9a9cfa459ec7b3f1bc4f655d2c17ba6ad720b75bed77eff659f24ab721f666a0ab3848227bbbc9f342ea304aca38dacab3d7fc07db
SSDEEP

24576:RQRXSperrOUj6k7ZqC30mFWr45b09cB/Utnq0LsjIOtjq:RQ9+k7ZxxFWrknO00L0

Score

9^/10

collection credential_access discovery persistence stealer

Malware Config

Signatures

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Detected Nirsoft tools 7 IoCs

Free utilities often used by attackers which can steal passwords, product keys, etc.

resource	yara_rule
behavioral1/memory/2900-49-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/2900-51-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/2900-52-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/2900-55-0x0000000000400000-0x000000000041B000-memory.dmp	Nirsoft
behavioral1/memory/2984-69-0x0000000000400000-0x000000000045A000-memory.dmp	Nirsoft
behavioral1/memory/2984-68-0x0000000000400000-0x000000000045A000-memory.dmp	Nirsoft
behavioral1/memory/2984-76-0x0000000000400000-0x000000000045A000-memory.dmp	Nirsoft

NirSoft MailPassView 4 IoCs

Password recovery tool for various email clients

resource	yara_rule
behavioral1/memory/2900-49-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/2900-51-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/2900-52-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView
behavioral1/memory/2900-55-0x0000000000400000-0x000000000041B000-memory.dmp	MailPassView

NirSoft WebBrowserPassView 3 IoCs

Password recovery tool for various web browsers

resource	yara_rule
behavioral1/memory/2984-69-0x0000000000400000-0x000000000045A000-memory.dmp	WebBrowserPassView
behavioral1/memory/2984-68-0x0000000000400000-0x000000000045A000-memory.dmp	WebBrowserPassView
behavioral1/memory/2984-76-0x0000000000400000-0x000000000045A000-memory.dmp	WebBrowserPassView

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\bKOMRSRMaBVAgWZM.lnk	cbCAgdVgIMfadELbUidWA.exe

Executes dropped EXE 1 IoCs

pid	Process
2276	cbCAgdVgIMfadELbUidWA.exe

Loads dropped DLL 2 IoCs

pid	Process
2468	d48c86260231082bf2206df014a9e899_JaffaCakes118.exe
2276	cbCAgdVgIMfadELbUidWA.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts	vbc.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\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	d48c86260231082bf2206df014a9e899_JaffaCakes118.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	checkip.dyndns.org

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2276 set thread context of 1972	2276	cbCAgdVgIMfadELbUidWA.exe	29
PID 1972 set thread context of 2900	1972	RegAsm.exe	31
PID 1972 set thread context of 2984	1972	RegAsm.exe	34

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 5 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	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d48c86260231082bf2206df014a9e899_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cbCAgdVgIMfadELbUidWA.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2984	vbc.exe
2984	vbc.exe
2984	vbc.exe
2984	vbc.exe
2984	vbc.exe
2984	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1972	RegAsm.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2468 wrote to memory of 2276	2468	d48c86260231082bf2206df014a9e899_JaffaCakes118.exe	28
PID 2468 wrote to memory of 2276	2468	d48c86260231082bf2206df014a9e899_JaffaCakes118.exe	28
PID 2468 wrote to memory of 2276	2468	d48c86260231082bf2206df014a9e899_JaffaCakes118.exe	28
PID 2468 wrote to memory of 2276	2468	d48c86260231082bf2206df014a9e899_JaffaCakes118.exe	28
PID 2276 wrote to memory of 1972	2276	cbCAgdVgIMfadELbUidWA.exe	29
PID 2276 wrote to memory of 1972	2276	cbCAgdVgIMfadELbUidWA.exe	29
PID 2276 wrote to memory of 1972	2276	cbCAgdVgIMfadELbUidWA.exe	29
PID 2276 wrote to memory of 1972	2276	cbCAgdVgIMfadELbUidWA.exe	29
PID 2276 wrote to memory of 1972	2276	cbCAgdVgIMfadELbUidWA.exe	29
PID 2276 wrote to memory of 1972	2276	cbCAgdVgIMfadELbUidWA.exe	29
PID 2276 wrote to memory of 1972	2276	cbCAgdVgIMfadELbUidWA.exe	29
PID 2276 wrote to memory of 1972	2276	cbCAgdVgIMfadELbUidWA.exe	29
PID 2276 wrote to memory of 1972	2276	cbCAgdVgIMfadELbUidWA.exe	29
PID 1972 wrote to memory of 2900	1972	RegAsm.exe	31
PID 1972 wrote to memory of 2900	1972	RegAsm.exe	31
PID 1972 wrote to memory of 2900	1972	RegAsm.exe	31
PID 1972 wrote to memory of 2900	1972	RegAsm.exe	31
PID 1972 wrote to memory of 2900	1972	RegAsm.exe	31
PID 1972 wrote to memory of 2900	1972	RegAsm.exe	31
PID 1972 wrote to memory of 2900	1972	RegAsm.exe	31
PID 1972 wrote to memory of 2900	1972	RegAsm.exe	31
PID 1972 wrote to memory of 2900	1972	RegAsm.exe	31
PID 1972 wrote to memory of 2900	1972	RegAsm.exe	31
PID 1972 wrote to memory of 2984	1972	RegAsm.exe	34
PID 1972 wrote to memory of 2984	1972	RegAsm.exe	34
PID 1972 wrote to memory of 2984	1972	RegAsm.exe	34
PID 1972 wrote to memory of 2984	1972	RegAsm.exe	34
PID 1972 wrote to memory of 2984	1972	RegAsm.exe	34
PID 1972 wrote to memory of 2984	1972	RegAsm.exe	34
PID 1972 wrote to memory of 2984	1972	RegAsm.exe	34
PID 1972 wrote to memory of 2984	1972	RegAsm.exe	34
PID 1972 wrote to memory of 2984	1972	RegAsm.exe	34
PID 1972 wrote to memory of 2984	1972	RegAsm.exe	34

C:\Users\Admin\AppData\Local\Temp\d48c86260231082bf2206df014a9e899_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d48c86260231082bf2206df014a9e899_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2468
- C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cbCAgdVgIMfadELbUidWA.exe
  C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cbCAgdVgIMfadELbUidWA.exe cbCAgdVgIMfadELbUid
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2276
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
    - CmdLine Args
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1972
  - - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\\Mail.txt"
      4⤵
      Accesses Microsoft Outlook accounts
      System Location Discovery: System Language Discovery
      PID:2900
  - - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /stext "C:\Users\Admin\AppData\Local\Temp\\Web.txt"
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

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

Scripting

T1064

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\bKOMRSRMaBVA

Filesize
474KB

MD5
6db279432792dd53d3e0ccaaf23d6582

SHA1
d06b8003e338591c521de3bb507e7f4d66d079bb

SHA256
d034eccaf7e94810383e28fa79152f114573af887b54941726caa834f35809c1

SHA512
960fb4468906ec0c3225eb5aa5373b7ae8c57399db53bc307bbd0d2a2ba6f6bf15e93452745acab67ba44f80e4b230fd2ab46f9cb0434a8973988f0d2ba6e4e1

Download Submit
C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\cbCAgdVgIMfadELbUid

Filesize
38KB

MD5
ae2d8ea2d8d0b0e06c9191135caf5c7f

SHA1
890cbb3afca0c1ebec936bad3fd3022cde55fa2e

SHA256
77a8c53fcc700961dcd4cae4c33af00aef7b5e2080312ea2ffaa037559cde135

SHA512
31fc08f9550b14fef4063ec14e2061079ff97c8dc3c6c86f8dc1e8cb3def1193a39d79bd64c44de30e8443101596836b9fcafb0eb615124ca81adcf5dd3bfe92

Download Submit
C:\Users\Admin\AppData\Local\Temp\Web.txt

Filesize
2B

MD5
f3b25701fe362ec84616a93a45ce9998

SHA1
d62636d8caec13f04e28442a0a6fa1afeb024bbb

SHA256
b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

SHA512
98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

Download Submit
\Users\Admin\AppData\Local\Temp\IXP000.TMP\cbCAgdVgIMfadELbUidWA.exe

Filesize
732KB

MD5
71d8f6d5dc35517275bc38ebcc815f9f

SHA1
cae4e8c730de5a01d30aabeb3e5cb2136090ed8d

SHA256
fb73a819b37523126c7708a1d06f3b8825fa60c926154ab2d511ba668f49dc4b

SHA512
4826f45000ea50d9044e3ef11e83426281fbd5f3f5a25f9786c2e487b4cf26b04f6f900ca6e70440644c9d75f700a4c908ab6f398f59c65ee1bff85dfef4ce59

Download Submit
memory/1972-27-0x0000000000090000-0x000000000010C000-memory.dmp

Filesize
496KB

Download
memory/1972-28-0x0000000000090000-0x000000000010C000-memory.dmp

Filesize
496KB

Download
memory/1972-20-0x0000000000090000-0x000000000010C000-memory.dmp

Filesize
496KB

Download
memory/1972-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1972-21-0x0000000000090000-0x000000000010C000-memory.dmp

Filesize
496KB

Download
memory/1972-33-0x00000000743F2000-0x00000000743F4000-memory.dmp

Filesize
8KB

Download
memory/1972-36-0x00000000743F0000-0x000000007499B000-memory.dmp

Filesize
5.7MB

Download
memory/1972-56-0x00000000743F0000-0x000000007499B000-memory.dmp

Filesize
5.7MB

Download
memory/1972-53-0x00000000743F2000-0x00000000743F4000-memory.dmp

Filesize
8KB

Download
memory/2276-19-0x0000000000770000-0x0000000000771000-memory.dmp

Filesize
4KB

Download
memory/2900-45-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2900-37-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2900-52-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2900-43-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2900-41-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2900-39-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2900-51-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2900-55-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2900-49-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2900-47-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2984-61-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2984-69-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2984-59-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2984-63-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2984-65-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2984-68-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2984-76-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/2984-74-0x0000000000460000-0x00000000005E1000-memory.dmp

Filesize
1.5MB

Download
memory/2984-57-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download