ramnit | 28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41

General

Target

28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe
Size

101KB
MD5

507f796cec4bf0b29dd7cc0a51254ae0
SHA1

3df4d3d17a3d2f084ce73a23742f9b6e51356409
SHA256

28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41
SHA512

667bff78757e9cb7df55fd9a209141f65061dd90b27df5f077a32af5a6916e0e6bbc692eaddd0c8c9cfa0d14fdc146926eca1bd4ee9d538dcfd4c6f7ed33c1ad
SSDEEP

3072:0BKwcvdwuxdWikJwkpGUkAuadtEtHXRKr3i:0BKwcvdnVkpGUZuaLEtHXRKm

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

pid	Process
4880	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41NSrv.exe
4664	DesktopLayer.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000c000000023b2d-3.dat	upx
behavioral2/memory/4880-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4880-8-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4664-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4664-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px7A7F.tmp	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41NSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41NSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41NSrv.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

description	ioc	Process
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	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41NSrv.exe

Modifies Internet Explorer settings 1 TTPs 26 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3793452260"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156184"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156184"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\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 (data)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "443770857"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3790014758"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{0D7FE012-D3CC-11EF-9361-5227CD58F2D9} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE

Modifies registry class 13 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file\DefaultIcon	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file\DefaultIcon\ = "\"C:\\Program Files (x86)\\Windows Mail\\wab.exe\",1"	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\text/x-vcard	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000_Classes\Local Settings	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.wab	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file\shell\open\command	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file\shell\open\command\ = "\"C:\\Program Files (x86)\\Windows Mail\\wab.exe\" /vcard %1"	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\vcard_wab_auto_file\ = "vCard File"	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\MIME\Database\Content Type\text/x-vcard\Extension = ".vcf"	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.vcf	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.vcf\ = "vcard_wab_auto_file"	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.vcf\Content Type = "text/x-vcard"	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4664	DesktopLayer.exe
4664	DesktopLayer.exe
4664	DesktopLayer.exe
4664	DesktopLayer.exe
4664	DesktopLayer.exe
4664	DesktopLayer.exe
4664	DesktopLayer.exe
4664	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1372	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1372	iexplore.exe
1372	iexplore.exe
1876	IEXPLORE.EXE
1876	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4324 wrote to memory of 4880	4324	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe	82
PID 4324 wrote to memory of 4880	4324	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe	82
PID 4324 wrote to memory of 4880	4324	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe	82
PID 4880 wrote to memory of 4664	4880	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41NSrv.exe	83
PID 4880 wrote to memory of 4664	4880	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41NSrv.exe	83
PID 4880 wrote to memory of 4664	4880	28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41NSrv.exe	83
PID 4664 wrote to memory of 1372	4664	DesktopLayer.exe	84
PID 4664 wrote to memory of 1372	4664	DesktopLayer.exe	84
PID 1372 wrote to memory of 1876	1372	iexplore.exe	85
PID 1372 wrote to memory of 1876	1372	iexplore.exe	85
PID 1372 wrote to memory of 1876	1372	iexplore.exe	85

C:\Users\Admin\AppData\Local\Temp\28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe
"C:\Users\Admin\AppData\Local\Temp\28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4324
- C:\Users\Admin\AppData\Local\Temp\28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41NSrv.exe
  C:\Users\Admin\AppData\Local\Temp\28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41NSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4880
- - 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:4664
  - - 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:1372
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1372 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1876

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

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
9e22a9c34466faf7bc9cf642444b3f30

SHA1
0ac45262532cce40083cc9049fb12d4efb06c01f

SHA256
57569469879a3144b391cf9def258ad9ef29d7fd1d3d70a28cfb506443d7a119

SHA512
c60649fb0ecdd14c9a6d8f9ea7ac4356b24a5e1a238705bbc8294b72ea2fda21965af200746ae20dd5f45e386fc30e2189de6007e08ff3d7ec72b8dfc39435fe

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

Filesize
404B

MD5
99df81a009afbba7993c348aa9f782bb

SHA1
37deb1b9ed2e4f891e5bfb80caead46dfc35e824

SHA256
6f37eaf42ebed76a98d0c671bbd3dbce942477d03b2d18edb92c9e70b935bffb

SHA512
abbd30275f13fb7e0b372efeb63a58ad23fd1a870ed1f947595c1228cd590a9b096c7bda2173a583926c8277d5a164ccdf186919383a13ac0e2de65f1234917e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0BHOTC3C\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\28e0d9b2b95905afdf8ec14024232f176c4745fa515b1673b6180a9b6649de41NSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/4324-0-0x0000000001000000-0x000000000101D000-memory.dmp

Filesize
116KB

Download
memory/4324-17-0x0000000001000000-0x000000000101D000-memory.dmp

Filesize
116KB

Download
memory/4664-13-0x0000000000490000-0x0000000000491000-memory.dmp

Filesize
4KB

Download
memory/4664-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4664-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4880-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4880-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4880-6-0x0000000000480000-0x000000000048F000-memory.dmp

Filesize
60KB

Download

Analysis

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