ramnit | e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349

Analysis

max time kernel
93s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20240704-en
resource tags

arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
submitted
09/07/2024, 06:32

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General

Target

e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349.exe
Size

1.2MB
MD5

fd619606868824ddcf7f4b608ed57438
SHA1

05b1d000c38861321c259e530a820c22d74c2821
SHA256

e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349
SHA512

a5006d0c3f6168da40763da5dd5717629ed3557f19b520141d8bb4134bae5fc99d022df639de8bf65a9154fd4b1b3de1dd9d20df2e66be83101081fdd127e842
SSDEEP

24576:y/yUbI1Fqf0+Tsq+lbBJhYut7/QRzmSzpN1CZUMa42NjbhkvCG9P:yaUUqfpvY/hxrvW4ZUv42NjtOHP

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
3328	e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349Srv.exe
3100	DesktopLayer.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3328-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x0007000000023292-3.dat	upx
behavioral2/memory/3100-13-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3100-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3328-10-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px9B55.tmp	e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349Srv.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "4181253761"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4187503996"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\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-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4181253761"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31117769"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{24C5C9FB-3DBD-11EF-B68A-DABE16D78429} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "427271779"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31117769"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31117769"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2547232018-1419253926-3356748848-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3100	DesktopLayer.exe
3100	DesktopLayer.exe
3100	DesktopLayer.exe
3100	DesktopLayer.exe
3100	DesktopLayer.exe
3100	DesktopLayer.exe
3100	DesktopLayer.exe
3100	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2572	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2572	iexplore.exe
2572	iexplore.exe
4028	IEXPLORE.EXE
4028	IEXPLORE.EXE
4028	IEXPLORE.EXE
4028	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 3328	1724	e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349.exe	82
PID 1724 wrote to memory of 3328	1724	e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349.exe	82
PID 1724 wrote to memory of 3328	1724	e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349.exe	82
PID 3328 wrote to memory of 3100	3328	e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349Srv.exe	83
PID 3328 wrote to memory of 3100	3328	e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349Srv.exe	83
PID 3328 wrote to memory of 3100	3328	e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349Srv.exe	83
PID 3100 wrote to memory of 2572	3100	DesktopLayer.exe	84
PID 3100 wrote to memory of 2572	3100	DesktopLayer.exe	84
PID 2572 wrote to memory of 4028	2572	iexplore.exe	85
PID 2572 wrote to memory of 4028	2572	iexplore.exe	85
PID 2572 wrote to memory of 4028	2572	iexplore.exe	85

C:\Users\Admin\AppData\Local\Temp\e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349.exe
"C:\Users\Admin\AppData\Local\Temp\e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Users\Admin\AppData\Local\Temp\e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349Srv.exe
  C:\Users\Admin\AppData\Local\Temp\e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:3328
- - 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:3100
  - - 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:2572
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2572 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4028

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\Windows\INetCache\IE\JYV3O38W\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\e45743cb37b26781254a8e87e42ca3709e33603d927e531e7d262b683e3b6349Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1724-0-0x0000000000400000-0x0000000000714000-memory.dmp

Filesize
3.1MB

Download
memory/1724-17-0x0000000000400000-0x0000000000714000-memory.dmp

Filesize
3.1MB

Download
memory/3100-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3100-12-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/3100-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3328-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3328-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3328-9-0x00000000005C0000-0x00000000005CF000-memory.dmp

Filesize
60KB

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