ramnit | f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67

Analysis

max time kernel
121s
max time network
153s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
21-11-2022 10:11

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General

Target

f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67.exe
Size

180KB
MD5

3b08e23526c97c64dc7962efac52e670
SHA1

7f9bc8c2f6cd1c86f364bc51ecd6871251fdd9eb
SHA256

f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67
SHA512

786dcbc433852e8273ae693bfc0829db869b0c56fd30a9427527a1b543db671370069d632a305c282dd82160c9379835506bd83b819bb35daadbad906277bd99
SSDEEP

3072:pr7cj66rUPSHJpode3ZnsPC4PuCie2TMifFnlrVStYBM55ekU3/DoY:6trUwIe3ZnV4Lie2TMifbrVTBuIX/DL

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
1796	f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67Srv.exe
932	DesktopLayer.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000b0000000122f0-55.dat	upx
behavioral1/files/0x000b0000000122f0-57.dat	upx
behavioral1/files/0x000b0000000122f0-59.dat	upx
behavioral1/files/0x000a0000000122f7-60.dat	upx
behavioral1/files/0x000a0000000122f7-63.dat	upx
behavioral1/memory/1796-62-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x000a0000000122f7-65.dat	upx
behavioral1/memory/932-66-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1576	f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67.exe
1796	f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67Srv.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxFCF6.tmp	f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67Srv.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "2"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{3B8D61E1-698D-11ED-87F1-C6AD45B766F5} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375794081"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
932	DesktopLayer.exe
932	DesktopLayer.exe
932	DesktopLayer.exe
932	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
576	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
576	iexplore.exe
576	iexplore.exe
1800	IEXPLORE.EXE
1800	IEXPLORE.EXE
1800	IEXPLORE.EXE
1800	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1576 wrote to memory of 1796	1576	f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67.exe	28
PID 1576 wrote to memory of 1796	1576	f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67.exe	28
PID 1576 wrote to memory of 1796	1576	f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67.exe	28
PID 1576 wrote to memory of 1796	1576	f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67.exe	28
PID 1796 wrote to memory of 932	1796	f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67Srv.exe	29
PID 1796 wrote to memory of 932	1796	f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67Srv.exe	29
PID 1796 wrote to memory of 932	1796	f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67Srv.exe	29
PID 1796 wrote to memory of 932	1796	f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67Srv.exe	29
PID 932 wrote to memory of 576	932	DesktopLayer.exe	30
PID 932 wrote to memory of 576	932	DesktopLayer.exe	30
PID 932 wrote to memory of 576	932	DesktopLayer.exe	30
PID 932 wrote to memory of 576	932	DesktopLayer.exe	30
PID 576 wrote to memory of 1800	576	iexplore.exe	32
PID 576 wrote to memory of 1800	576	iexplore.exe	32
PID 576 wrote to memory of 1800	576	iexplore.exe	32
PID 576 wrote to memory of 1800	576	iexplore.exe	32

C:\Users\Admin\AppData\Local\Temp\f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67.exe
"C:\Users\Admin\AppData\Local\Temp\f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1576
- C:\Users\Admin\AppData\Local\Temp\f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67Srv.exe
  C:\Users\Admin\AppData\Local\Temp\f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67Srv.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1796
- - 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:932
  - - 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:576
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:576 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1800

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

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\f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\TWE9EMVU.txt

Filesize
601B

MD5
b5fc0b907b6f5db6182038325265521e

SHA1
6215b54729ca68512ad7c1bac5373c25cb7a4ae9

SHA256
9238978d324a8819c1ea58472988f0d728154c3f05adb5fbd72790e807252a27

SHA512
3469fb98575d3edf3f0a6f2d9782f109a148bde06b4930b8846243329cb5d32214123ed2e394352667748d2078fe833745b05c3c44f991a7e2489063e7d7e1ac

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\f3d7f7ae36b36727f6cf849b1a85c0384f497cf5a3b415bdc5692b4cd5f82b67Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/932-66-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1576-54-0x0000000075C81000-0x0000000075C83000-memory.dmp

Filesize
8KB

Download
memory/1576-67-0x0000000001000000-0x000000000102E000-memory.dmp

Filesize
184KB

Download
memory/1576-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1576-70-0x0000000001000000-0x000000000102E000-memory.dmp

Filesize
184KB

Download
memory/1796-62-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download