Analysis Overview
SHA256
8d66803ee8c28f8c9930677f18a331867e46977e982aea278131fd0592c31d7f
Threat Level: Known bad
The file 040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Darkcomet
Modifies WinLogon for persistence
Darkcomet family
Sets file to hidden
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Adds Run key to start application
Unsigned PE
Enumerates physical storage devices
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Modifies registry class
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of WriteProcessMemory
Views/modifies file attributes
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-20 07:31
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-20 07:31
Reported
2024-06-20 07:34
Platform
win7-20240221-en
Max time kernel
149s
Max time network
123s
Command Line
Signatures
Darkcomet
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\word.exe" | C:\Users\Admin\AppData\Local\Temp\040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118.exe | N/A |
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\word.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\Audio Driver = "C:\\Users\\Admin\\Documents\\word.exe" | C:\Users\Admin\AppData\Local\Temp\040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\Audio Driver = "C:\\Users\\Admin\\Documents\\word.exe" | C:\Users\Admin\Documents\word.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\word.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\word.exe | N/A |
Suspicious use of WriteProcessMemory
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118.exe" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118.exe" +s +h
C:\Users\Admin\Documents\word.exe
"C:\Users\Admin\Documents\word.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
Files
memory/1948-0-0x00000000004B0000-0x00000000004B1000-memory.dmp
C:\Users\Admin\Documents\word.exe
| MD5 | 040e131e6072a3bbb3472d17446ed7a4 |
| SHA1 | c1d2a37b3ec90c19ca49602a8a03f64a16d3c706 |
| SHA256 | 8d66803ee8c28f8c9930677f18a331867e46977e982aea278131fd0592c31d7f |
| SHA512 | 1941a28b8b2a208764fb708a957b78af75e060df7c0f4c1b0aade3531e65874cb62f301ba4904b61bcdd6f15d817d043176301af8fef99dd34452a4264a37106 |
memory/1948-12-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2528-13-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2528-14-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2528-15-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2528-16-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2528-17-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2528-18-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2528-19-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2528-20-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2528-21-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2528-22-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2528-23-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2528-24-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2528-25-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2528-26-0x0000000000400000-0x00000000004AF000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-20 07:31
Reported
2024-06-20 07:34
Platform
win10v2004-20240226-en
Max time kernel
152s
Max time network
156s
Command Line
Signatures
Darkcomet
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\word.exe" | C:\Users\Admin\AppData\Local\Temp\040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118.exe | N/A |
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\word.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Audio Driver = "C:\\Users\\Admin\\Documents\\word.exe" | C:\Users\Admin\AppData\Local\Temp\040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Audio Driver = "C:\\Users\\Admin\\Documents\\word.exe" | C:\Users\Admin\Documents\word.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ | C:\Users\Admin\AppData\Local\Temp\040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\word.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\word.exe | N/A |
Suspicious use of WriteProcessMemory
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118.exe" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\040e131e6072a3bbb3472d17446ed7a4_JaffaCakes118.exe" +s +h
C:\Users\Admin\Documents\word.exe
"C:\Users\Admin\Documents\word.exe"
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=4112 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| GB | 96.16.110.114:80 | tcp | |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 164.189.21.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| GB | 172.217.169.74:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 74.169.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | 26.173.189.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
| US | 8.8.8.8:53 | etjt4tregfjedf.hopto.org | udp |
Files
memory/2136-0-0x0000000002360000-0x0000000002361000-memory.dmp
C:\Users\Admin\Documents\word.exe
| MD5 | 040e131e6072a3bbb3472d17446ed7a4 |
| SHA1 | c1d2a37b3ec90c19ca49602a8a03f64a16d3c706 |
| SHA256 | 8d66803ee8c28f8c9930677f18a331867e46977e982aea278131fd0592c31d7f |
| SHA512 | 1941a28b8b2a208764fb708a957b78af75e060df7c0f4c1b0aade3531e65874cb62f301ba4904b61bcdd6f15d817d043176301af8fef99dd34452a4264a37106 |
memory/2520-62-0x00000000006B0000-0x00000000006B1000-memory.dmp
memory/2136-63-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2520-64-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2520-65-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2520-66-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2520-67-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2520-68-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2520-69-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2520-70-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2520-71-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2520-72-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2520-73-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2520-74-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2520-75-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2520-76-0x0000000000400000-0x00000000004AF000-memory.dmp
memory/2520-77-0x0000000000400000-0x00000000004AF000-memory.dmp