ramnit | a5c44bfb4fd69e91ddc7928ecebdc1c7483404130c1dc14ffb6cc28c4d7103ca

Analysis

max time kernel
138s
max time network
182s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
29/11/2022, 07:45

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General

Target

a5c44bfb4fd69e91ddc7928ecebdc1c7483404130c1dc14ffb6cc28c4d7103ca.dll
Size

600KB
MD5

ef39548718db6bc32ae5760666a8517c
SHA1

c7f76947f88dc4e7d4d0f3f8bc9472e0ed6bd904
SHA256

a5c44bfb4fd69e91ddc7928ecebdc1c7483404130c1dc14ffb6cc28c4d7103ca
SHA512

91bcc6449937f4c32d0f6675bbb5b3d23d8fd03162322de6df7f0c45eb60ae682c0326d06e25625aef85d4c6c85e8877a13124afb2ea25c3bb7a2d8192ce5bd0
SSDEEP

12288:hZL7A5l0711g8onrOcWAqVv6NT81x4NCD:hZL7AfYhonS6FI4NCD

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 1 IoCs

pid	Process
1116	rundll32mgr.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0009000000014138-56.dat	upx
behavioral1/files/0x0009000000014138-57.dat	upx
behavioral1/files/0x0009000000014138-59.dat	upx
behavioral1/memory/1116-64-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/1116-65-0x0000000000400000-0x0000000000456000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
904	rundll32.exe
904	rundll32.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1860	904	WerFault.exe	28

Modifies Internet Explorer settings 1 TTPs 55 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\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3d0000003d000000c3040000a2020000	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\{CB316311-70AD-11ED-874D-7AEFAD47A2D2} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376577737"	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\Main\WindowsSearch	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\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	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\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	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\Main	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\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	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\BrowserEmulation\LowMic	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 (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\Toolbar\WebBrowser	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\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Zoom	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\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	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 (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	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\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Toolbar	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\DomainSuggestion\FileNames\	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\IETld\LowMic	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{CB3625D1-70AD-11ED-874D-7AEFAD47A2D2} = "0"	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\PageSetup	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\Main\FullScreen = "no"	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\BrowserEmulation\LowMic	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\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1116	rundll32mgr.exe
1116	rundll32mgr.exe
1116	rundll32mgr.exe
1116	rundll32mgr.exe
1116	rundll32mgr.exe
1116	rundll32mgr.exe
1116	rundll32mgr.exe
1116	rundll32mgr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1116	rundll32mgr.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
760	iexplore.exe
892	iexplore.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
760	iexplore.exe
760	iexplore.exe
892	iexplore.exe
892	iexplore.exe
1664	IEXPLORE.EXE
1664	IEXPLORE.EXE
1080	IEXPLORE.EXE
1080	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 1332 wrote to memory of 904	1332	rundll32.exe	28
PID 1332 wrote to memory of 904	1332	rundll32.exe	28
PID 1332 wrote to memory of 904	1332	rundll32.exe	28
PID 1332 wrote to memory of 904	1332	rundll32.exe	28
PID 1332 wrote to memory of 904	1332	rundll32.exe	28
PID 1332 wrote to memory of 904	1332	rundll32.exe	28
PID 1332 wrote to memory of 904	1332	rundll32.exe	28
PID 904 wrote to memory of 1116	904	rundll32.exe	29
PID 904 wrote to memory of 1116	904	rundll32.exe	29
PID 904 wrote to memory of 1116	904	rundll32.exe	29
PID 904 wrote to memory of 1116	904	rundll32.exe	29
PID 904 wrote to memory of 1860	904	rundll32.exe	30
PID 904 wrote to memory of 1860	904	rundll32.exe	30
PID 904 wrote to memory of 1860	904	rundll32.exe	30
PID 904 wrote to memory of 1860	904	rundll32.exe	30
PID 1116 wrote to memory of 760	1116	rundll32mgr.exe	31
PID 1116 wrote to memory of 760	1116	rundll32mgr.exe	31
PID 1116 wrote to memory of 760	1116	rundll32mgr.exe	31
PID 1116 wrote to memory of 760	1116	rundll32mgr.exe	31
PID 1116 wrote to memory of 892	1116	rundll32mgr.exe	32
PID 1116 wrote to memory of 892	1116	rundll32mgr.exe	32
PID 1116 wrote to memory of 892	1116	rundll32mgr.exe	32
PID 1116 wrote to memory of 892	1116	rundll32mgr.exe	32
PID 760 wrote to memory of 1080	760	iexplore.exe	35
PID 760 wrote to memory of 1080	760	iexplore.exe	35
PID 760 wrote to memory of 1080	760	iexplore.exe	35
PID 760 wrote to memory of 1080	760	iexplore.exe	35
PID 892 wrote to memory of 1664	892	iexplore.exe	34
PID 892 wrote to memory of 1664	892	iexplore.exe	34
PID 892 wrote to memory of 1664	892	iexplore.exe	34
PID 892 wrote to memory of 1664	892	iexplore.exe	34

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a5c44bfb4fd69e91ddc7928ecebdc1c7483404130c1dc14ffb6cc28c4d7103ca.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1332
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a5c44bfb4fd69e91ddc7928ecebdc1c7483404130c1dc14ffb6cc28c4d7103ca.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:904
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1116
  - - 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:760
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:760 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1080
  - - 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:892
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:892 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1664
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 904 -s 232
    3⤵
    - Program crash
    PID:1860

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:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{CB316311-70AD-11ED-874D-7AEFAD47A2D2}.dat

Filesize
5KB

MD5
1e05f876c55df6b96ed5f9a87600e8a0

SHA1
e7d4b975e11ff203e8ad1d125f2697babeef49fc

SHA256
eb838793b4ddebeb1a6927a8023dffcb462cf8080c685485a51b2135027247bd

SHA512
68b73c025c8b8f058b7ce17e061310072b546862c534abda34c5c8fc5ab5e4389fbdea38e27d724a2b206c1ff7ab63f03c790273590ae7d7aa2ea744bf8ae910

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{CB3625D1-70AD-11ED-874D-7AEFAD47A2D2}.dat

Filesize
3KB

MD5
fe270d6ed9db5ffa5106bc254225b128

SHA1
c515780cc69e02967eb178472bbcfdad5e64fc60

SHA256
66ddc0d8f0284d90c8b0c5f39b0fc3df60f1a19d806cb9f4e6edf245233ac730

SHA512
8ba34a415752875133e8606ede24cf8558f2cb22b8c08e74e7b3e601265e2ced97fb5893a3291964919f1b31eb7b0c56b071e670dd3b6bb72eec69fe739085a0

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\7X0ARE3K.txt

Filesize
600B

MD5
3c4829b2a44893ed0fbbc9628263fd1f

SHA1
cdcfe596396b5da0a75228f0ab6cc6709bbf891e

SHA256
b111b27dc8a7dbf9758db3ee60bd2e6a83b73622ff3699eb2a768c22245e0271

SHA512
145fc1ce3b30b2bb0429d6349bf984466cf8b2019356c7fd023b545943c09b64191f5974d83353e4022a8fc7bc2723fbff23f6e9f6f79cef88ab279569345d7f

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
125KB

MD5
12d840fc0b79a745c013e73c4c470467

SHA1
f47b3c28974d6199e596c365f5e7161656480100

SHA256
7ee9098ea2bc30eaea20eceb5e8cda620772c4ba2d7d6945e34ea93fb6054ccb

SHA512
de5f3cb695f1a10d897968668ea403721e09f9c66db796d932b8152edb1681dbac777efb63a2cff9d81380d09452f90470a8b77363a99f21421b9ff61fcb930a

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
125KB

MD5
12d840fc0b79a745c013e73c4c470467

SHA1
f47b3c28974d6199e596c365f5e7161656480100

SHA256
7ee9098ea2bc30eaea20eceb5e8cda620772c4ba2d7d6945e34ea93fb6054ccb

SHA512
de5f3cb695f1a10d897968668ea403721e09f9c66db796d932b8152edb1681dbac777efb63a2cff9d81380d09452f90470a8b77363a99f21421b9ff61fcb930a

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
125KB

MD5
12d840fc0b79a745c013e73c4c470467

SHA1
f47b3c28974d6199e596c365f5e7161656480100

SHA256
7ee9098ea2bc30eaea20eceb5e8cda620772c4ba2d7d6945e34ea93fb6054ccb

SHA512
de5f3cb695f1a10d897968668ea403721e09f9c66db796d932b8152edb1681dbac777efb63a2cff9d81380d09452f90470a8b77363a99f21421b9ff61fcb930a

Download Submit
memory/904-55-0x0000000075351000-0x0000000075353000-memory.dmp

Filesize
8KB

Download
memory/904-61-0x0000000010000000-0x0000000010097000-memory.dmp

Filesize
604KB

Download
memory/904-62-0x00000000001B0000-0x0000000000206000-memory.dmp

Filesize
344KB

Download
memory/904-63-0x00000000001B0000-0x0000000000206000-memory.dmp

Filesize
344KB

Download
memory/1116-64-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1116-65-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download