ramnit | 2eaab28769520ba0639609dab4b75f312de042da270b5833c1e0530d990698a4

General

Target

2eaab28769520ba0639609dab4b75f312de042da270b5833c1e0530d990698a4.dll
Size

230KB
MD5

0e6798e25d2270d8119daaabd093ced0
SHA1

083de11cc4e3664755f1bfa627dfd622bfbf29e5
SHA256

2eaab28769520ba0639609dab4b75f312de042da270b5833c1e0530d990698a4
SHA512

ef9d553c418cc4e2734fd6cdb3549843cdf320f16d522d90be1bb42f5b964657e12cf7abf3e9ddff707fea8f93b4aab149850b517f7bc9727fa67a228cd92f71
SSDEEP

6144:lrOuZoHH6usBX4kHkL8nyr4sS/CexxHYhVoSpY4eV3S0E:l3oHuEIyP8Cexx4hVoSGVC

Score

10^/10

ramnit banker 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

Executes dropped EXE 2 IoCs

pid	Process
4908	regsvr32Srv.exe
4836	DesktopLayer.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4208-133-0x0000000075190000-0x000000007521F000-memory.dmp	upx
behavioral2/files/0x0008000000022f63-135.dat	upx
behavioral2/files/0x0008000000022f63-138.dat	upx
behavioral2/files/0x0008000000022f67-142.dat	upx
behavioral2/memory/4908-141-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x0008000000022f67-140.dat	upx
behavioral2/memory/4836-143-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\regsvr32Srv.exe	regsvr32.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	regsvr32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	regsvr32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxF6C8.tmp	regsvr32Srv.exe

Modifies Internet Explorer settings 1 TTPs 25 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2318584955"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{B489C52A-571B-11ED-AECB-5A10AEE59B4B} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30993192"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30993192"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "373766192"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2318584955"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4836	DesktopLayer.exe
4836	DesktopLayer.exe
4836	DesktopLayer.exe
4836	DesktopLayer.exe
4836	DesktopLayer.exe
4836	DesktopLayer.exe
4836	DesktopLayer.exe
4836	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1256	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1256	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1256	iexplore.exe
1256	iexplore.exe
2288	IEXPLORE.EXE
2288	IEXPLORE.EXE
2288	IEXPLORE.EXE
2288	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3716 wrote to memory of 4208	3716	regsvr32.exe	81
PID 3716 wrote to memory of 4208	3716	regsvr32.exe	81
PID 3716 wrote to memory of 4208	3716	regsvr32.exe	81
PID 4208 wrote to memory of 4908	4208	regsvr32.exe	82
PID 4208 wrote to memory of 4908	4208	regsvr32.exe	82
PID 4208 wrote to memory of 4908	4208	regsvr32.exe	82
PID 4908 wrote to memory of 4836	4908	regsvr32Srv.exe	83
PID 4908 wrote to memory of 4836	4908	regsvr32Srv.exe	83
PID 4908 wrote to memory of 4836	4908	regsvr32Srv.exe	83
PID 4836 wrote to memory of 1256	4836	DesktopLayer.exe	84
PID 4836 wrote to memory of 1256	4836	DesktopLayer.exe	84
PID 1256 wrote to memory of 2288	1256	iexplore.exe	85
PID 1256 wrote to memory of 2288	1256	iexplore.exe	85
PID 1256 wrote to memory of 2288	1256	iexplore.exe	85

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2eaab28769520ba0639609dab4b75f312de042da270b5833c1e0530d990698a4.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3716
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\2eaab28769520ba0639609dab4b75f312de042da270b5833c1e0530d990698a4.dll
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4208
- - C:\Windows\SysWOW64\regsvr32Srv.exe
    C:\Windows\SysWOW64\regsvr32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of WriteProcessMemory
    PID:4908
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:4836
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1256
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1256 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2288

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Windows\SysWOW64\regsvr32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Windows\SysWOW64\regsvr32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/4208-133-0x0000000075190000-0x000000007521F000-memory.dmp

Filesize
572KB

Download
memory/4208-136-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/4208-137-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/4836-143-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4908-141-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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