ramnit | b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709

General

Target

b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709N.exe
Size

640KB
MD5

7af5475085c991c01f9530134b5cec70
SHA1

3ad78b2805a69a5c3528a0213848e57b984eb759
SHA256

b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709
SHA512

ac8c8cf34ab6de910962b935bc1132467c3824ab5d7690ff2b51e9f2e7e28d0e42517bd74b8af6dedce59869a56c8daa9676e6ef06971db5c60f01a3235960f8
SSDEEP

12288:72f+zZvZ5kjAcUFc2yV7zIFDIyWOy6ba3yd4QCZUv5YYYkx:7ROQa3e4JZ8Yk

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
3320	b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709NSrv.exe
5064	DesktopLayer.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5064-14-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral2/memory/5064-16-0x0000000000400000-0x0000000000413000-memory.dmp	upx
behavioral2/memory/3320-8-0x0000000000400000-0x0000000000413000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709NSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px788B.tmp	b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709NSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709NSrv.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	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709NSrv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe

Modifies Internet Explorer settings 1 TTPs 26 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31158470"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31158470"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\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-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444752688"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{0E6E2CFE-DCBA-11EF-9361-DA61A5E71E4E} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3806257546"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3808757180"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
5064	DesktopLayer.exe
5064	DesktopLayer.exe
5064	DesktopLayer.exe
5064	DesktopLayer.exe
5064	DesktopLayer.exe
5064	DesktopLayer.exe
5064	DesktopLayer.exe
5064	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3220	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3220	iexplore.exe
3220	iexplore.exe
2352	IEXPLORE.EXE
2352	IEXPLORE.EXE
2352	IEXPLORE.EXE
2352	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3156 wrote to memory of 3320	3156	b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709N.exe	83
PID 3156 wrote to memory of 3320	3156	b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709N.exe	83
PID 3156 wrote to memory of 3320	3156	b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709N.exe	83
PID 3320 wrote to memory of 5064	3320	b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709NSrv.exe	84
PID 3320 wrote to memory of 5064	3320	b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709NSrv.exe	84
PID 3320 wrote to memory of 5064	3320	b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709NSrv.exe	84
PID 5064 wrote to memory of 3220	5064	DesktopLayer.exe	85
PID 5064 wrote to memory of 3220	5064	DesktopLayer.exe	85
PID 3220 wrote to memory of 2352	3220	iexplore.exe	86
PID 3220 wrote to memory of 2352	3220	iexplore.exe	86
PID 3220 wrote to memory of 2352	3220	iexplore.exe	86

C:\Users\Admin\AppData\Local\Temp\b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709N.exe
"C:\Users\Admin\AppData\Local\Temp\b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3156
- C:\Users\Admin\AppData\Local\Temp\b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709NSrv.exe
  C:\Users\Admin\AppData\Local\Temp\b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709NSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3320
- - 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:5064
  - - 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:3220
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3220 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2352

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

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Downloads

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

Filesize
471B

MD5
65ff4e1a660b03c192195dc09416d8a8

SHA1
c8e9c1b5d0e74e2f581eaa06d77db42ddb2b24b9

SHA256
25f890730498e80c6b85f0ca869917f45af6cadbb427695a615181eac3285dc2

SHA512
3efa3c79d74861659b4e6e97b362fb4943eeae2e81425029bbf407fb2c4c914bc2d2b43bc8164e9ed050cdb24f411a8582e086eb3557227ad79ec2256c5a52ba

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

Filesize
404B

MD5
b2b12443eb4b7f1374e8d9a77ebfedb6

SHA1
e02ccc949f407e6e9c4830bdd8232ef6ba6183f2

SHA256
81421c1d40f9b4f73be612c295e8d0e457fa2c07107f4ac612ab079fcd863336

SHA512
5b9c5781e120cd976da9dd43f6e117d5462cf403a889e112032c70c8ca9f8032e1390dde566dcc558b63da488a05d58c8901a330805d73c6dd0119f67295446c

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0BHOTC3C\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\b045358154f9358338c7055516982872ed6017b58ec396e0cc3344a843838709NSrv.exe

Filesize
52KB

MD5
ce99b549382dbfc4f41efe99b5dbcd54

SHA1
66905167920ece3a0bf65441d30da72ad25b7475

SHA256
e26d8f6a9c98b949d1f58c97c2dbcf7d90d7a3c3d2f06eb9b6033465d493322d

SHA512
54447bdddf475594a4e8f5ccda131190e3e858a02e0147aee7c7b04ae54812b18aefdbdf5e59fc3005686b06fe938b904b2099672063738898f4995fd4bab1bc

Download Submit
memory/3156-0-0x0000000000400000-0x00000000004FF000-memory.dmp

Filesize
1020KB

Download
memory/3156-5-0x0000000000400000-0x00000000004FF000-memory.dmp

Filesize
1020KB

Download
memory/3320-8-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3320-7-0x00000000004B0000-0x00000000004C3000-memory.dmp

Filesize
76KB

Download
memory/5064-14-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/5064-13-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download
memory/5064-16-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download

Analysis

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