ramnit | 3f3ccfa1c62a2f351d2b40b4f7c32c0df19159acd553085b601f6505c7e589fd

General

Target

JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8.exe
Size

1.0MB
MD5

1a3a7033d0e83c4c63faafb2d30dd2b8
SHA1

487248366cbe4972dfda24ab59cb6702c59e1d9f
SHA256

3f3ccfa1c62a2f351d2b40b4f7c32c0df19159acd553085b601f6505c7e589fd
SHA512

b51e500f9b9c09e54e82009625d04f03ca6539f1abcb2b62c12c87e41aab9af916c02ff9965d435f99923e96a54fb06df4a72fa64136bddc5310da4750c0a1e8
SSDEEP

12288:zka9AJsjMNzMKsQ5/p3q2BQaGxhXIxOoNSi14a30:zFLYtbsedhG7XIxrSQ30

Score

10^/10

ramnit banker discovery spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit
Ramnit family
ramnit

Executes dropped EXE 2 IoCs

pid	Process
3804	JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8Srv.exe
452	DesktopLayer.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000c000000023b4e-3.dat	upx
behavioral2/memory/3804-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3804-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/452-11-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/452-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/452-13-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px9DF5.tmp	JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8Srv.exe

System Location Discovery: System Language Discovery 1 TTPs 4 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	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8Srv.exe

Modifies Internet Explorer settings 1 TTPs 26 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2075057542"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157705"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{A742EE88-D9BC-11EF-AEE2-468C69F2ED48} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2078026119"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444423950"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157705"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
452	DesktopLayer.exe
452	DesktopLayer.exe
452	DesktopLayer.exe
452	DesktopLayer.exe
452	DesktopLayer.exe
452	DesktopLayer.exe
452	DesktopLayer.exe
452	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3588	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3588	iexplore.exe
3588	iexplore.exe
4440	IEXPLORE.EXE
4440	IEXPLORE.EXE
4440	IEXPLORE.EXE
4440	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2784 wrote to memory of 3804	2784	JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8.exe	83
PID 2784 wrote to memory of 3804	2784	JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8.exe	83
PID 2784 wrote to memory of 3804	2784	JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8.exe	83
PID 3804 wrote to memory of 452	3804	JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8Srv.exe	84
PID 3804 wrote to memory of 452	3804	JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8Srv.exe	84
PID 3804 wrote to memory of 452	3804	JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8Srv.exe	84
PID 452 wrote to memory of 3588	452	DesktopLayer.exe	85
PID 452 wrote to memory of 3588	452	DesktopLayer.exe	85
PID 3588 wrote to memory of 4440	3588	iexplore.exe	86
PID 3588 wrote to memory of 4440	3588	iexplore.exe	86
PID 3588 wrote to memory of 4440	3588	iexplore.exe	86

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2784
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8Srv.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3804
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:452
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:3588
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3588 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4440

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
dc142ff8759ecb81417ba231bbcf25d0

SHA1
201681d524cde8af5c11b5111f5fa697521c5739

SHA256
d6e2a573b1e137d8b823b82cfeaadeb30df36a0fa7a268a1278465b28fdc7bb6

SHA512
b36456cf3ef37e4bbe0e4acf8b25cc85a39f8517d1b80b3191b1be7ddc6d58c74247b2d9dedb0b67ac4f8a2f3d92773e90aee326cfe612f8573ba6ad6b73e833

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
01c411a2e2f707568a21af253fbe7bdd

SHA1
276cea2073c299836dbc73d97ad6ee298f6fcd24

SHA256
925a1f7149a720de93ccd63dcd8ce6039bdcd2da2fe85270973f60b2cdaf232e

SHA512
23a871bb8d701ed97acf63f0b2be509c220ad2a3136c760d8d55acc1709e947e29715e5fa7b248439092e286de7699797dddd2ba4617451919c5db1c1e72b50d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\M6JHG9EK\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1a3a7033d0e83c4c63faafb2d30dd2b8Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/452-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/452-11-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/452-15-0x0000000000570000-0x0000000000571000-memory.dmp

Filesize
4KB

Download
memory/452-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2784-18-0x0000000000400000-0x0000000000550000-memory.dmp

Filesize
1.3MB

Download
memory/2784-0-0x0000000000400000-0x0000000000550000-memory.dmp

Filesize
1.3MB

Download
memory/2784-20-0x0000000000400000-0x0000000000550000-memory.dmp

Filesize
1.3MB

Download
memory/3804-6-0x0000000000440000-0x000000000044F000-memory.dmp

Filesize
60KB

Download
memory/3804-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3804-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing