ramnit | 8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618

General

Target

8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618.exe
Size

444KB
MD5

488a375d837dbdc8b5066036a3d02530
SHA1

99662f73dd39de6e86216f1c8b3eeac4daccaf87
SHA256

8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618
SHA512

b3890a1593ad3368677b2818751dfcda967e9b137681959b530d221fb555fda5fc408487f31004ac4b9a18c200b1c0fab6aeae6b52cde4c91e636cdc213310b3
SSDEEP

6144:qumfrAHPxeQJb4OhwX9byBtKqO5Dxa3U0FrgrBvMYqYTJB:q5rAHhJ839e85oU0FErBE14B

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
1456	8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618Srv.exe
1092	DesktopLayer.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00140000000054ab-55.dat	upx
behavioral1/files/0x00140000000054ab-57.dat	upx
behavioral1/files/0x00140000000054ab-59.dat	upx
behavioral1/files/0x0008000000014864-60.dat	upx
behavioral1/memory/1456-63-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x0008000000014864-62.dat	upx
behavioral1/files/0x0008000000014864-65.dat	upx
behavioral1/memory/1092-66-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
368	8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618.exe
1456	8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618Srv.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxEA8E.tmp	8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618Srv.exe

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "371653824"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{7B532DF1-43E5-11ED-9681-FAF5FAF3A79A} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1092	DesktopLayer.exe
1092	DesktopLayer.exe
1092	DesktopLayer.exe
1092	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2020	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2020	iexplore.exe
2020	iexplore.exe
1716	IEXPLORE.EXE
1716	IEXPLORE.EXE
1716	IEXPLORE.EXE
1716	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 368 wrote to memory of 1456	368	8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618.exe	27
PID 368 wrote to memory of 1456	368	8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618.exe	27
PID 368 wrote to memory of 1456	368	8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618.exe	27
PID 368 wrote to memory of 1456	368	8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618.exe	27
PID 1456 wrote to memory of 1092	1456	8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618Srv.exe	28
PID 1456 wrote to memory of 1092	1456	8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618Srv.exe	28
PID 1456 wrote to memory of 1092	1456	8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618Srv.exe	28
PID 1456 wrote to memory of 1092	1456	8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618Srv.exe	28
PID 1092 wrote to memory of 2020	1092	DesktopLayer.exe	29
PID 1092 wrote to memory of 2020	1092	DesktopLayer.exe	29
PID 1092 wrote to memory of 2020	1092	DesktopLayer.exe	29
PID 1092 wrote to memory of 2020	1092	DesktopLayer.exe	29
PID 2020 wrote to memory of 1716	2020	iexplore.exe	31
PID 2020 wrote to memory of 1716	2020	iexplore.exe	31
PID 2020 wrote to memory of 1716	2020	iexplore.exe	31
PID 2020 wrote to memory of 1716	2020	iexplore.exe	31

C:\Users\Admin\AppData\Local\Temp\8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618.exe
"C:\Users\Admin\AppData\Local\Temp\8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:368
- C:\Users\Admin\AppData\Local\Temp\8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618Srv.exe
  C:\Users\Admin\AppData\Local\Temp\8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618Srv.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1456
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1092
  - - 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:2020
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2020 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1716

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:\Users\Admin\AppData\Local\Temp\8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\LPXSVR1Y.txt

Filesize
608B

MD5
8404ece76a889e71b1c52c69708d110c

SHA1
2d90a008d5503f6996358a2e424fc2085ea14c9c

SHA256
d3572f087663396a2a4961509e001d91b05a48d138e8fbb45a12106c5e29f01c

SHA512
6922802a94e6d3d1048f92a37c54239fc4e0f25fdfc2e3809220fecb5e5f757bb233d66fb904a243eda8a2ba1dfa58c1b22598c8d56733fc9a0154e19feb7b8c

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

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Users\Admin\AppData\Local\Temp\8a8ca4ff4555cb0ca00991a25cf4995c9cb80faf62eacaae5f548411168df618Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/368-54-0x0000000075021000-0x0000000075023000-memory.dmp

Filesize
8KB

Download
memory/368-68-0x00000000002D0000-0x00000000002FE000-memory.dmp

Filesize
184KB

Download
memory/368-67-0x0000000000400000-0x00000000004D6000-memory.dmp

Filesize
856KB

Download
memory/368-69-0x0000000000400000-0x00000000004D6000-memory.dmp

Filesize
856KB

Download
memory/1092-66-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1456-63-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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