ramnit | c65046f87d5ceebfe71df19347ce5e768354b4a160d9b9f5b4a753c5dab06ff2

Analysis

max time kernel
129s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
25-05-2024 19:09

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General

Target

protozoa.exe
Size

446KB
MD5

e2483e0fbce7217101ba1e0cb49026c1
SHA1

62788e0e7c29811c87bcd636ad12c3f8db1d81b3
SHA256

2e8a4183f3340095e2aa0988d9c4c99d4fc724d21b36ae947797a16116187131
SHA512

88b8bac88b89ac494ad88ffd88abfce11a738021a15a30600850c9c0b5ebed1c3c78806cf0f9d6204d6afc5c6990b24fa876fa1e7270bc20db040c7eeda05c70
SSDEEP

6144:gVHYucgQtyqGplPZCragI0eG2IQ8CN99tPRsTPePBZva6KIaV7FqFPK/QXPj7QRx:gVY3yxCrab0H68g7SqBa97mUG1NT

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

Processes:

protozoaSrv.exeDesktopLayer.exe

pid process

1056 protozoaSrv.exe
4224 DesktopLayer.exe

pid	process
1056	protozoaSrv.exe
4224	DesktopLayer.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\protozoaSrv.exe	upx
behavioral32/memory/1056-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral32/memory/4224-19-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

Processes:

protozoaSrv.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	protozoaSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px5043.tmp	protozoaSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	protozoaSrv.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "963923929"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31108823"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{645281BC-1ACA-11EF-B826-F2DE30E55115} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "958926715"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31108823"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31108823"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "423429179"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\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-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "958926715"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

DesktopLayer.exe

pid	process
4224	DesktopLayer.exe
4224	DesktopLayer.exe
4224	DesktopLayer.exe
4224	DesktopLayer.exe
4224	DesktopLayer.exe
4224	DesktopLayer.exe
4224	DesktopLayer.exe
4224	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

2112 iexplore.exe
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

protozoa.exeiexplore.exeIEXPLORE.EXE

pid process

3620 protozoa.exe
2112 iexplore.exe
2112 iexplore.exe
3332 IEXPLORE.EXE
3332 IEXPLORE.EXE
3332 IEXPLORE.EXE
3332 IEXPLORE.EXE

pid	process
2112	iexplore.exe

pid	process
3620	protozoa.exe
2112	iexplore.exe
2112	iexplore.exe
3332	IEXPLORE.EXE
3332	IEXPLORE.EXE
3332	IEXPLORE.EXE
3332	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

protozoa.exeprotozoaSrv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 3620 wrote to memory of 1056	3620	protozoa.exe	protozoaSrv.exe
PID 3620 wrote to memory of 1056	3620	protozoa.exe	protozoaSrv.exe
PID 3620 wrote to memory of 1056	3620	protozoa.exe	protozoaSrv.exe
PID 1056 wrote to memory of 4224	1056	protozoaSrv.exe	DesktopLayer.exe
PID 1056 wrote to memory of 4224	1056	protozoaSrv.exe	DesktopLayer.exe
PID 1056 wrote to memory of 4224	1056	protozoaSrv.exe	DesktopLayer.exe
PID 4224 wrote to memory of 2112	4224	DesktopLayer.exe	iexplore.exe
PID 4224 wrote to memory of 2112	4224	DesktopLayer.exe	iexplore.exe
PID 2112 wrote to memory of 3332	2112	iexplore.exe	IEXPLORE.EXE
PID 2112 wrote to memory of 3332	2112	iexplore.exe	IEXPLORE.EXE
PID 2112 wrote to memory of 3332	2112	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\protozoa.exe
"C:\Users\Admin\AppData\Local\Temp\protozoa.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3620
- C:\Users\Admin\AppData\Local\Temp\protozoaSrv.exe
  C:\Users\Admin\AppData\Local\Temp\protozoaSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:1056
- - 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:4224
  - - 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:2112
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2112 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3332

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\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
c41ab5352ba79baac9ac093dd7eb2500

SHA1
1ffb0e70f86845daba211aeda43cad539d34ffd3

SHA256
558e13bb7aa293569457e9703d2db37e8365e2ab670b2c3484ada9336ed24895

SHA512
ccebe3f11039e14d39d4102652669fd372d179778bf73fae0659dd01da569bbf850b273cd3a4e13dc77b3fd4fb4d84d01525ac3a0dcb23b297c733da10bc2ff0

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
3ff775e6bba96851a7896d10316d6bd4

SHA1
4de375d893f2126b687963bbfa28da2805c36007

SHA256
253bb2b72e193f32dc3ca4b2460f411441656072f07af7f34144edd89af7fa5f

SHA512
b913cec17c9656b8c4559f23404676fb1963cd2cca8bd5e85dc2551fefd3ed5c930261ca0d6c2ea7d8f80956fa83acbd64a74b64d8b7942338a3dc32b47d5cab

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\YB09K3UP\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1056-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3620-1-0x000000006A400000-0x000000006A45E000-memory.dmp

Filesize
376KB

Download
memory/3620-12-0x0000000001470000-0x0000000001932000-memory.dmp

Filesize
4.8MB

Download
memory/3620-17-0x0000000000FA0000-0x0000000001462000-memory.dmp

Filesize
4.8MB

Download
memory/3620-6-0x0000000000FA0000-0x0000000001462000-memory.dmp

Filesize
4.8MB

Download
memory/3620-20-0x0000000001470000-0x0000000001932000-memory.dmp

Filesize
4.8MB

Download
memory/3620-26-0x0000000010000000-0x000000001002C000-memory.dmp

Filesize
176KB

Download
memory/3620-27-0x000000006A400000-0x000000006A45E000-memory.dmp

Filesize
376KB

Download
memory/3620-25-0x000000006ED80000-0x000000006EDB5000-memory.dmp

Filesize
212KB

Download
memory/3620-23-0x0000000000400000-0x00000000005EBDE0-memory.dmp

Filesize
1.9MB

Download
memory/3620-28-0x0000000000FA0000-0x0000000001462000-memory.dmp

Filesize
4.8MB

Download
memory/3620-0-0x0000000010000000-0x000000001002C000-memory.dmp

Filesize
176KB

Download
memory/4224-15-0x0000000000450000-0x0000000000451000-memory.dmp

Filesize
4KB

Download
memory/4224-19-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

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