ramnit | ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2

Analysis

max time kernel
93s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-11-2024 15:09

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General

Target

ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2N.exe
Size

309KB
MD5

787b6741a69112082bdcafc2f7141800
SHA1

a7ab4e000758629f6454720c70d1734514c12c73
SHA256

ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2
SHA512

b82fc87e2c10a5a2dd75d8cadd3c9f86a896be3f72aba983260fc3fe00d2bec96d00c89f809b33681a9f12f9f58ae032bdf7a902f7b440a93f175a993114492a
SSDEEP

6144:abz1BFNQGjTdUzNf92ThnS4azNpJ0RFZg6Y:a9LVd0n3tJ/0RFZgh

Score

10^/10

ramnit banker discovery 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
Ramnit family
ramnit

Executes dropped EXE 2 IoCs

Processes:

ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2NSrv.exeDesktopLayer.exe

pid	Process
4868	ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2NSrv.exe
336	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/files/0x000c000000023b27-3.dat	upx
behavioral2/memory/4868-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4868-5-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/336-11-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/336-16-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/336-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

Processes:

ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2NSrv.exe

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px87BE.tmp	ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2NSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2NSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2NSrv.exe

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2NSrv.exeDesktopLayer.exeIEXPLORE.EXEab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2N.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2NSrv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2N.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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3821671864"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31144395"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31144395"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "438707523"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\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
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3821671864"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31144395"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3827296790"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{0F608AF1-A5BF-11EF-B9D5-FAA11E730504} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

DesktopLayer.exe

pid	Process
336	DesktopLayer.exe
336	DesktopLayer.exe
336	DesktopLayer.exe
336	DesktopLayer.exe
336	DesktopLayer.exe
336	DesktopLayer.exe
336	DesktopLayer.exe
336	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid	Process
4464	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid	Process
4464	iexplore.exe
4464	iexplore.exe
4372	IEXPLORE.EXE
4372	IEXPLORE.EXE
4372	IEXPLORE.EXE
4372	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2N.exeab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2NSrv.exeDesktopLayer.exeiexplore.exe

description	pid	Process	procid_target
PID 1520 wrote to memory of 4868	1520	ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2N.exe	83
PID 1520 wrote to memory of 4868	1520	ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2N.exe	83
PID 1520 wrote to memory of 4868	1520	ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2N.exe	83
PID 4868 wrote to memory of 336	4868	ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2NSrv.exe	84
PID 4868 wrote to memory of 336	4868	ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2NSrv.exe	84
PID 4868 wrote to memory of 336	4868	ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2NSrv.exe	84
PID 336 wrote to memory of 4464	336	DesktopLayer.exe	85
PID 336 wrote to memory of 4464	336	DesktopLayer.exe	85
PID 4464 wrote to memory of 4372	4464	iexplore.exe	87
PID 4464 wrote to memory of 4372	4464	iexplore.exe	87
PID 4464 wrote to memory of 4372	4464	iexplore.exe	87

C:\Users\Admin\AppData\Local\Temp\ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2N.exe
"C:\Users\Admin\AppData\Local\Temp\ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Users\Admin\AppData\Local\Temp\ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2NSrv.exe
  C:\Users\Admin\AppData\Local\Temp\ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2NSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4868
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:336
  - - 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:4464
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4464 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4372

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

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
cdfebcd84ff934bb577a1d3a07a3ccad

SHA1
5092f452374bb3943b00cf53bcad7a92215bae87

SHA256
7f877563622aeda07395133fb7c81746df3389c360549e2309c161c8a394d9bf

SHA512
605a455017dc67d6257a5b434ce9a8df8fbac30dcf6e45856c823ee9998f4008ae08947129a23d88c222c866a06192c2e75374880fe8b67d591816492ae4f56b

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

Filesize
404B

MD5
0c627edb391dffeb23ce865807abee18

SHA1
aa69bf178cb084810d2be486583fd5251ffb74d7

SHA256
f191034d8d159921a5abca8c040bdbff03fb5f52daa27d5bb61dd88406bb89ac

SHA512
da066b8d54aea2bf80af9910a865704069e11a01d4da16035c6f721efe84d511bf4f1b3908ef002c440f1f60d414a30efccc9656d5f26a370ec1fcbf9f6c1217

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FQRZN8O7\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\ab7bba8e1704650fedb3d65ced59e47dc804ab04000a3aef4f439c83d14c0cc2NSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/336-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/336-11-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/336-14-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download
memory/336-16-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1520-19-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1520-0-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/1520-9-0x0000000000400000-0x000000000052D000-memory.dmp

Filesize
1.2MB

Download
memory/4868-5-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4868-6-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

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