ramnit | e16ac3f14e8b78ef1f56643f0ecaa9310659d498e1a2712575763bf09c0c3376

Analysis

max time kernel
151s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
27/02/2024, 20:43

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General

Target

aa1cbbafc41735fe8e794a6e5d8e5410.dll
Size

264KB
MD5

aa1cbbafc41735fe8e794a6e5d8e5410
SHA1

439c128008abf32242c4290bba1232f20127d1f4
SHA256

e16ac3f14e8b78ef1f56643f0ecaa9310659d498e1a2712575763bf09c0c3376
SHA512

b35b7bd7433ac3d9d8299c5462f20f11bfc4e0303e17d189c089015cff9d57a38711703911662037452cf8d2a73db86b7b18aae3e5d265d84463c32a07d576e9
SSDEEP

6144:MQL46sq9C9X3xVHG8EnSEpawFWAf23j9Wpxhq:F5s1xVHG8ESkDcAfcjKxM

Score

10^/10

ramnit adware 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
4996	regsvr32mgr.exe

Loads dropped DLL 1 IoCs

pid	Process
4996	regsvr32mgr.exe

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4996-6-0x0000000000400000-0x000000000046A000-memory.dmp	upx

Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{CC59E0F9-7E43-44FA-9FAA-8377850BF205}	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{CC59E0F9-7E43-44FA-9FAA-8377850BF205}\NoExplorer = "1"	regsvr32.exe

Drops file in System32 directory 1 IoCs

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3292	4996	WerFault.exe	97

Modifies registry class 64 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC59E0F9-7E43-44FA-9FAA-8377850BF205}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D4D6EAB8-009E-4EED-814E-4891D7E1741B}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D4D6EAB8-009E-4EED-814E-4891D7E1741B}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{64844F4D-492F-429E-881C-D7F106259738}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Iecooks.FDMIECookiesBHO.1\CLSID\ = "{CC59E0F9-7E43-44FA-9FAA-8377850BF205}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Iecooks.FDMIECookiesBHO	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{64844F4D-492F-429E-881C-D7F106259738}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{351A47E5-B59E-4CF2-B81A-B651D75FE944}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\aa1cbbafc41735fe8e794a6e5d8e5410.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{40D3F599-74F0-44D3-B059-76C0F12C0D6E}\ = "IFDMIECookiesBHO"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D4D6EAB8-009E-4EED-814E-4891D7E1741B}\ProgID\ = "Iecooks.FDMIEStat.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{64844F4D-492F-429E-881C-D7F106259738}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Iecooks.FDMIECookiesBHO\CLSID\ = "{CC59E0F9-7E43-44FA-9FAA-8377850BF205}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC59E0F9-7E43-44FA-9FAA-8377850BF205}\VersionIndependentProgID\ = "Iecooks.FDMIECookiesBHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{351A47E5-B59E-4CF2-B81A-B651D75FE944}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC59E0F9-7E43-44FA-9FAA-8377850BF205}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Iecooks.FDMIEStat\ = "FDMIEStat Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{40D3F599-74F0-44D3-B059-76C0F12C0D6E}\TypeLib\ = "{351A47E5-B59E-4CF2-B81A-B651D75FE944}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{64844F4D-492F-429E-881C-D7F106259738}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Iecooks.FDMIECookiesBHO.1\ = "FDMIECookiesBHO Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Iecooks.FDMIECookiesBHO\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{351A47E5-B59E-4CF2-B81A-B651D75FE944}\1.0\ = "iecooks 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{351A47E5-B59E-4CF2-B81A-B651D75FE944}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{40D3F599-74F0-44D3-B059-76C0F12C0D6E}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{64844F4D-492F-429E-881C-D7F106259738}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{64844F4D-492F-429E-881C-D7F106259738}\ = "IFDMIEStat"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC59E0F9-7E43-44FA-9FAA-8377850BF205}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC59E0F9-7E43-44FA-9FAA-8377850BF205}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{351A47E5-B59E-4CF2-B81A-B651D75FE944}\1.0\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{40D3F599-74F0-44D3-B059-76C0F12C0D6E}\TypeLib\ = "{351A47E5-B59E-4CF2-B81A-B651D75FE944}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D4D6EAB8-009E-4EED-814E-4891D7E1741B}\VersionIndependentProgID\ = "Iecooks.FDMIEStat"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{351A47E5-B59E-4CF2-B81A-B651D75FE944}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC59E0F9-7E43-44FA-9FAA-8377850BF205}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D4D6EAB8-009E-4EED-814E-4891D7E1741B}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{40D3F599-74F0-44D3-B059-76C0F12C0D6E}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Iecooks.FDMIECookiesBHO.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC59E0F9-7E43-44FA-9FAA-8377850BF205}\ = "FDMIECookiesBHO Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Iecooks.FDMIEStat\CurVer\ = "Iecooks.FDMIEStat.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D4D6EAB8-009E-4EED-814E-4891D7E1741B}\TypeLib\ = "{351A47E5-B59E-4CF2-B81A-B651D75FE944}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{40D3F599-74F0-44D3-B059-76C0F12C0D6E}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{40D3F599-74F0-44D3-B059-76C0F12C0D6E}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC59E0F9-7E43-44FA-9FAA-8377850BF205}\VersionIndependentProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Iecooks.FDMIEStat\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC59E0F9-7E43-44FA-9FAA-8377850BF205}\TypeLib\ = "{351A47E5-B59E-4CF2-B81A-B651D75FE944}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Iecooks.FDMIEStat	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{351A47E5-B59E-4CF2-B81A-B651D75FE944}\1.0\FLAGS	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{40D3F599-74F0-44D3-B059-76C0F12C0D6E}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{40D3F599-74F0-44D3-B059-76C0F12C0D6E}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{64844F4D-492F-429E-881C-D7F106259738}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Iecooks.FDMIECookiesBHO\CurVer	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Iecooks.FDMIECookiesBHO\CurVer\ = "Iecooks.FDMIECookiesBHO.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D4D6EAB8-009E-4EED-814E-4891D7E1741B}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{351A47E5-B59E-4CF2-B81A-B651D75FE944}\1.0\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{40D3F599-74F0-44D3-B059-76C0F12C0D6E}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{64844F4D-492F-429E-881C-D7F106259738}\TypeLib\ = "{351A47E5-B59E-4CF2-B81A-B651D75FE944}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC59E0F9-7E43-44FA-9FAA-8377850BF205}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Iecooks.FDMIEStat.1\ = "FDMIEStat Class"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{40D3F599-74F0-44D3-B059-76C0F12C0D6E}\ = "IFDMIECookiesBHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{40D3F599-74F0-44D3-B059-76C0F12C0D6E}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{40D3F599-74F0-44D3-B059-76C0F12C0D6E}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{64844F4D-492F-429E-881C-D7F106259738}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{64844F4D-492F-429E-881C-D7F106259738}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{351A47E5-B59E-4CF2-B81A-B651D75FE944}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{351A47E5-B59E-4CF2-B81A-B651D75FE944}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Iecooks.FDMIEStat\CLSID\ = "{D4D6EAB8-009E-4EED-814E-4891D7E1741B}"	regsvr32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1040 wrote to memory of 2540	1040	regsvr32.exe	94
PID 1040 wrote to memory of 2540	1040	regsvr32.exe	94
PID 1040 wrote to memory of 2540	1040	regsvr32.exe	94
PID 2540 wrote to memory of 4996	2540	regsvr32.exe	97
PID 2540 wrote to memory of 4996	2540	regsvr32.exe	97
PID 2540 wrote to memory of 4996	2540	regsvr32.exe	97

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\aa1cbbafc41735fe8e794a6e5d8e5410.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1040
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\aa1cbbafc41735fe8e794a6e5d8e5410.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\SysWOW64\regsvr32mgr.exe
    C:\Windows\SysWOW64\regsvr32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    PID:4996
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4996 -s 10196
      4⤵
      Program crash
      PID:3292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4996 -ip 4996
1⤵
PID:3252

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3736 --field-trial-handle=2232,i,11267738607351977302,107266978269557304,262144 --variations-seed-version /prefetch:8
1⤵
PID:1208

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

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\Temp\~TMCE5C.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

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

Filesize
162KB

MD5
6c1e199ccc02acaf6e962eb75acb8c98

SHA1
742db8306bdbc1759d73eabd7914a93f94478cc7

SHA256
8408dc27c9c9a7b6ffa3fc2484284be71709d714f33a0b2e0ee51da03f7c7e0f

SHA512
6c8151370cc7264cab59d2c5cc03c2bc384a4cd44d2a58d431d3fca7ef2318b2aced1fa7fb21d6e4ca7fb25392912e5ef8592cfff9755ecc59b9af9fd1e14b3c

Download Submit
memory/2540-0-0x0000000010000000-0x0000000010043000-memory.dmp

Filesize
268KB

Download
memory/4996-5-0x00000000020A0000-0x000000000210A000-memory.dmp

Filesize
424KB

Download
memory/4996-6-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/4996-10-0x00000000776F2000-0x00000000776F4000-memory.dmp

Filesize
8KB

Download
memory/4996-11-0x00000000776F2000-0x00000000776F3000-memory.dmp

Filesize
4KB

Download