baf935e9215405928b8e57601b9c09a1a7f5f273f5ea3cd230efef4fd055abfb

General

Target
jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
Size 64KB
Sample261006-trqs5sfe73
SHA256 baf935e9215405928b8e57601b9c09a1a7f5f273f5ea3cd230efef4fd055abfb
MD5 e33e2907c757ac675c10a508ded236a3
SHA1 c14d87aeda2668b17790f2217c405b19e49c3c02
SHA512 459ff221e34d7ed08b47ae622a1a3ebf64c0fc53e27af90198f54c2cb141d5b9ded43b2a2accf0edeb5d9a3c678bac8adb2ba898298fbe4aa036528c3a0e1b03
SSDEEP 1536:V3cpyORJLuB4P4AJJv4Romu/gYF5XCcx7icBbMVMEh:V3c1fP4AJJv45sCcx7JBb/Eh
TLSH
T1E953CF1A32C1D4BBD96752319DB38B7AE3F79B01236256832B24AF7F2D31087D927581
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

defense_evasion discovery execution

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1404337215-1550464601-2805570857-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe

Loads dropped DLL 11 IoCs

pid	Process
4148	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
4148	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
4148	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
4148	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
4148	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
4148	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
4148	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
4148	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
4148	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
4148	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
4148	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\soft1\Internet Explorar\Desktop.ini	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Internet Explorar\Desktop.ini	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe

Drops file in Program Files directory 5 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\soft1\Internet Explorar\Desktop.ini	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
File created	C:\Program Files (x86)\Microsoft\soft1\Internet Explorar\target.lnk	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
File opened for modification	C:\Program Files (x86)\Microsoft\soft1\Internet Explorar\target.lnk	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Internet Explorar\Desktop.ini	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
File opened for modification	C:\Program Files (x86)\Microsoft\soft1\Internet Explorar	attrib.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\tbgw.ico	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
File opened for modification	C:\Windows\tbgw.ico	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe

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

System Information Discovery
T1082

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
4356	cmd.exe

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	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 9 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.ofc\ = "ofcfile"	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ofcfile	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ofcfile\DefaultIcon\ = "%1"	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ofcfile\shell	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ofcfile\shell\open	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.ofc	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ofcfile\DefaultIcon	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\ofcfile\shell\open\command	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\ofcfile\shell\open\command\ = "explorer \"C:\\Program Files (x86)\\Microsoft\\soft%*%S\\%2Internet Explorar\""	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4148 wrote to memory of 3888	4148	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe	88
PID 4148 wrote to memory of 4356	4148	jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe	91

Views/modifies file attributes 1 TTPs 1 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
3888	attrib.exe

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.StartPage.dvq.exe"
1⤵
- Modifies visibility of file extensions in Explorer
- Loads dropped DLL
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4148
- C:\Windows\SysWOW64\attrib.exe
  "C:\Windows\System32\attrib.exe" "C:\Program Files (x86)\Microsoft\soft1\Internet Explorar" +s
  2⤵
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Views/modifies file attributes
  PID:3888
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\temp_c.bat" "
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  PID:4356

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

2

T1564

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Desktop.ini

Path C:\Program Files (x86)\Microsoft\soft1\Internet Explorar\Desktop.ini
Size 75B
SHA256 bc4eaf790a990a2dbb8460775c257f603d2303a7ab282dd5f405264af202282c
MD5 254a842845d5fe636a018ed64927573f
SHA1 405c601e91dbd53febdca03e5ccc1fd1b03107be
SHA512 e817292fe07e880cd21e1cba72d4fec097fab51f21012a891bad6be6d43da8573a2ecc881a9c9c6a01dc421b55eb4734a79803899e51234ff4bd4c2a4a8a8acf
TLSH
T15EA022C2A28A0008C00EC08E20BE82E00F280F83AF2EE2020280C880088CE323038E80
MD5 SHA1 SHA512 TLSH

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target.lnk

Path C:\Program Files (x86)\Microsoft\soft1\Internet Explorar\target.lnk
Size 1KB
SHA256 03eb39cce8d8d69e6096f62da4f748d5d9f26abc9690be45cd29d3314ceb97ac
MD5 030f75d87ee7cb85dd23b00a77da74fc
SHA1 7e50f2fe84d4c90d7b64130c1ed4ceb474b88e9d
SHA512 84dba7f95f32e2bfde465bb3bbc561e34449f4b3c953febdfbaa5b9dcc179972f276ed35d78c8d9b425ccf1cbd99cf161b377cc6230769f59480d371c549a427
TLSH
T18411261073E7050CF6121E709CB0EE82D57FBA20B750825DA9AA06CC0173431022DB7A
MD5 SHA1 SHA512 TLSH

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AccessControl.dll

Path C:\Users\Admin\AppData\Local\Temp\nsjB379.tmp\AccessControl.dll
Size 10KB
SHA256 4209588362785b690d08d15cd982b8d1c62c348767ca19114234b21d5df74ddc
MD5 055f4f9260e07fc83f71877cbb7f4fad
SHA1 a245131af1a182de99bd74af9ff1fab17977a72f
SHA512 a8e82dc4435ed938f090f43df953ddad9b0075f16218c09890c996299420162d64b1dbfbf613af37769ae796717eec78204dc786b757e8b1d13d423d4ee82e26
SSDEEP 192:8SEWBGgiJM4LN+xq56XdNcNz/NWdlJmlyOcROQ:8SEPgii9KTzyt
TLSH
T171221A569F3493F9F083953B595269178BBAD24180C09C072EA7FF8D464074AEEBD317
MD5 SHA1 SHA512 SSDEEP TLSH

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System.dll

Path C:\Users\Admin\AppData\Local\Temp\nsjB379.tmp\System.dll
Size 11KB
SHA256 dc4da2ccadb11099076926b02764b2b44ad8f97cd32337421a4cc21a3f5448f3
MD5 00a0194c20ee912257df53bfe258ee4a
SHA1 d7b4e319bc5119024690dc8230b9cc919b1b86b2
SHA512 3b38a2c17996c3b77ebf7b858a6c37415615e756792132878d8eddbd13cb06710b7da0e8b58104768f8e475fc93e8b44b3b1ab6f70ddf52edee111aaf5ef5667
SSDEEP 192:7DKnJZCv6VmbJQC+tFiUdK7ckD4gRXKQx+LQ2CSF:7ViJrtFRdbmXK8+PCw
TLSH
T113325B5993A0C1F3D5A0823C0DA73A7B1379722016B14FA3CFA35841AE196D7AC7D237
MD5 SHA1 SHA512 SSDEEP TLSH

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temp_c.bat

Path C:\Users\Admin\AppData\Local\Temp\temp_c.bat
Size 218B
SHA256 f9949078cef76cd6419f68446d84d8a9116b962ef7eecc574c94895568120d40
MD5 36c9dda48fc9f9cfc7debebe26293196
SHA1 c2303ee8630d7b50e780cb210a93bc25f9397915
SHA512 8579f04840daea7cbf9d4223ca80079300b7e3c6709387034f3817d4533fa1a464051f64e063726b5af2346825e4820b9b998d3ae88406d29f4eea220665f991
TLSH
T190D0C9885196DB5A8848CE7B19785B9F90594E5829883B185732C18862F29BDB2C3B1C
MD5 SHA1 SHA512 TLSH

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Internet Explorar.ofc

Path C:\Users\Public\Desktop\Internet Explorar.ofc
Size 3KB
SHA256 f3773735bdae040b28c801c78377784b669311c1ff659814b987e1e9b9bc9999
MD5 0caa7366baa9bfa31d74d6ca56524551
SHA1 182c3864cb1357c64165cf432e223b4ab8ee0e5f
SHA512 87e3601cbde307c62f452985b0c591d562b3c6f7b204c0a4fe7f666c22e1ce22064acf71d5a083765e9271429f6e7f6c447b1549c7cbbdb81e2f3b7a1e52126a
TLSH
T1E961E99DBB023E56C8C6303937DF360C47115A6D599E008560F16D1FBA5B1AF097C117
MD5 SHA1 SHA512 TLSH

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ÌÔ ±¦ Íø ¹º.lnk

Path C:\Users\Public\Desktop\ÌÔ ±¦ Íø ¹º.lnk
Size 1010B
SHA256 3808e5ceae259f656b45361840daecff6c0e753a2e03cc490d7ce550ffb8b56f
MD5 0241624317d179d69afaf8bdd85e6603
SHA1 293e70e2d3ef82aeaafb1edf0f4811290c8e10e6
SHA512 806b249b8dc3d6865b96b5a63f1e0b74e2b783a2d58151ceadf5d3b53f66da666300bbde1c8c48a6b26d8c0e98ed60f4b50429b9770b251a34e91082dc2e0aab
TLSH
T1FD11131291F05B49EFF30DBF91D576414970F435B501C7B5075480DE6494550ED35B57
MD5 SHA1 SHA512 TLSH

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads