ramnit | 38fcbd0564660fb2a0882c8dbafd3544b01f5ce26cbe1a398b386e149266f99e

Analysis

max time kernel
145s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
10/01/2024, 10:37

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General

Target

5054d200be138c0884a32526474c68c8.dll
Size

166KB
MD5

5054d200be138c0884a32526474c68c8
SHA1

4425b03d6739b5b9e1397c2c3c0938de32c13ba2
SHA256

38fcbd0564660fb2a0882c8dbafd3544b01f5ce26cbe1a398b386e149266f99e
SHA512

a32ef810f7db9dcdc52c9701c7ba25a4de515620e48eb101e4facc0f786b844213397f44824834b58a4a34dae9ebb254d4c08d4e6ebfe95076fb8a29b7f079c5
SSDEEP

3072:2TU56gVxj27NeylxHjrEyye69uzzJU3R1e:t4J7D60JU3R1e

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
3168	regsvr32mgr.exe
2900	WaterMark.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3168-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2900-22-0x0000000000400000-0x0000000000435000-memory.dmp	upx
behavioral2/memory/2900-30-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2900-28-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3168-15-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3168-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3168-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3168-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3168-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3168-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3168-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2900-37-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2900-38-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\regsvr32mgr.exe	regsvr32.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px473A.tmp	regsvr32mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	regsvr32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	regsvr32mgr.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
436	4532	WerFault.exe	89

Modifies Internet Explorer settings 1 TTPs 33 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "171082516"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "411648006"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\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
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31081393"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31081393"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{35D281D1-AFA4-11EE-9ECD-5A2E32B6DBC3} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31081393"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31081393"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "205145192"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "205145192"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "171082516"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2900	WaterMark.exe
2900	WaterMark.exe
2900	WaterMark.exe
2900	WaterMark.exe
2900	WaterMark.exe
2900	WaterMark.exe
2900	WaterMark.exe
2900	WaterMark.exe
2900	WaterMark.exe
2900	WaterMark.exe
2900	WaterMark.exe
2900	WaterMark.exe
2900	WaterMark.exe
2900	WaterMark.exe
2900	WaterMark.exe
2900	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2900	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4076	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4076	iexplore.exe
4076	iexplore.exe
760	IEXPLORE.EXE
760	IEXPLORE.EXE
760	IEXPLORE.EXE
760	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
3168	regsvr32mgr.exe
2900	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 5020 wrote to memory of 1984	5020	regsvr32.exe	87
PID 5020 wrote to memory of 1984	5020	regsvr32.exe	87
PID 5020 wrote to memory of 1984	5020	regsvr32.exe	87
PID 1984 wrote to memory of 3168	1984	regsvr32.exe	88
PID 1984 wrote to memory of 3168	1984	regsvr32.exe	88
PID 1984 wrote to memory of 3168	1984	regsvr32.exe	88
PID 3168 wrote to memory of 2900	3168	regsvr32mgr.exe	96
PID 3168 wrote to memory of 2900	3168	regsvr32mgr.exe	96
PID 3168 wrote to memory of 2900	3168	regsvr32mgr.exe	96
PID 2900 wrote to memory of 4532	2900	WaterMark.exe	89
PID 2900 wrote to memory of 4532	2900	WaterMark.exe	89
PID 2900 wrote to memory of 4532	2900	WaterMark.exe	89
PID 2900 wrote to memory of 4532	2900	WaterMark.exe	89
PID 2900 wrote to memory of 4532	2900	WaterMark.exe	89
PID 2900 wrote to memory of 4532	2900	WaterMark.exe	89
PID 2900 wrote to memory of 4532	2900	WaterMark.exe	89
PID 2900 wrote to memory of 4532	2900	WaterMark.exe	89
PID 2900 wrote to memory of 4532	2900	WaterMark.exe	89
PID 2900 wrote to memory of 3988	2900	WaterMark.exe	97
PID 2900 wrote to memory of 3988	2900	WaterMark.exe	97
PID 2900 wrote to memory of 4076	2900	WaterMark.exe	98
PID 2900 wrote to memory of 4076	2900	WaterMark.exe	98
PID 4076 wrote to memory of 760	4076	iexplore.exe	99
PID 4076 wrote to memory of 760	4076	iexplore.exe	99
PID 4076 wrote to memory of 760	4076	iexplore.exe	99

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\5054d200be138c0884a32526474c68c8.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:5020
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\5054d200be138c0884a32526474c68c8.dll
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1984
- - C:\Windows\SysWOW64\regsvr32mgr.exe
    C:\Windows\SysWOW64\regsvr32mgr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:3168
  - - C:\Program Files (x86)\Microsoft\WaterMark.exe
      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of UnmapMainImage
      Suspicious use of WriteProcessMemory
      PID:2900
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:3988
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4076
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4076 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:760

C:\Windows\SysWOW64\svchost.exe
C:\Windows\system32\svchost.exe
1⤵
PID:4532
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4532 -s 208
  2⤵
  - Program crash
  PID:436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4532 -ip 4532
1⤵
PID:1604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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\VersionManager\verD755.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

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

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\SysWOW64\regsvr32mgr.exe

Filesize
96KB

MD5
8c51fd9d6daa7b6137634de19a49452c

SHA1
db2a11cca434bacad2bf42adeecae38e99cf64f8

SHA256
528d190fc376cff62a83391a5ba10ae4ef0c02bedabd0360274ddc2784e11da3

SHA512
b93dd6c86d0618798a11dbaa2ded7dac659f6516ca4a87da7297601c27f340fffa4126a852c257654d562529273d8a3f639ec020ab54b879c68226deae549837

Download Submit
memory/1984-0-0x0000000075300000-0x000000007532C000-memory.dmp

Filesize
176KB

Download
memory/2900-30-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2900-22-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/2900-35-0x0000000077952000-0x0000000077953000-memory.dmp

Filesize
4KB

Download
memory/2900-31-0x0000000077952000-0x0000000077953000-memory.dmp

Filesize
4KB

Download
memory/2900-37-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2900-36-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/2900-29-0x0000000000060000-0x0000000000061000-memory.dmp

Filesize
4KB

Download
memory/2900-28-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2900-38-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3168-15-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3168-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3168-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3168-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3168-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3168-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3168-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3168-14-0x0000000001900000-0x0000000001901000-memory.dmp

Filesize
4KB

Download
memory/3168-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3168-5-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/4532-33-0x0000000001000000-0x0000000001001000-memory.dmp

Filesize
4KB

Download
memory/4532-34-0x0000000000DE0000-0x0000000000DE1000-memory.dmp

Filesize
4KB

Download