ramnit | f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32

Analysis

max time kernel
95s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
10-01-2025 06:49

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General

Target

f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32.exe
Size

312KB
MD5

8375807672405be267583a7d697dbe49
SHA1

5d688c412dedb64fab2ff87fbd7a90443471bd53
SHA256

f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32
SHA512

758e8b43859b15807c9da941154264f8cebbc093fc1cc7444e994b3a8aa099a036b74d15ee6efa4a363451f9f13bbdf5ce5a731381ca7055ed4b0d3c890d9754
SSDEEP

6144:vlt76kgZTzCHk02rbeodnXLqHrtn/RtoRm9zImsIVS95oFBf8dYdyQ:H76RTzI2rRdnXLqhn/RtJ3BkCUQ

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
3028	f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32Srv.exe
4100	DesktopLayer.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3028-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x000a000000023c10-3.dat	upx
behavioral2/memory/3028-8-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4100-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4100-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px9134.tmp	f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32Srv.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1972	3532	WerFault.exe	83

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	f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31154987"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31154987"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3775545133"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31154987"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "443256748"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{0C972705-CF1F-11EF-BEF1-D6A59BC41F9D} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3778044350"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3775545133"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\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-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4100	DesktopLayer.exe
4100	DesktopLayer.exe
4100	DesktopLayer.exe
4100	DesktopLayer.exe
4100	DesktopLayer.exe
4100	DesktopLayer.exe
4100	DesktopLayer.exe
4100	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3100	iexplore.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
3532	f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32.exe
3532	f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32.exe
3100	iexplore.exe
3100	iexplore.exe
4540	IEXPLORE.EXE
4540	IEXPLORE.EXE
4540	IEXPLORE.EXE
4540	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3532 wrote to memory of 3028	3532	f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32.exe	84
PID 3532 wrote to memory of 3028	3532	f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32.exe	84
PID 3532 wrote to memory of 3028	3532	f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32.exe	84
PID 3028 wrote to memory of 4100	3028	f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32Srv.exe	85
PID 3028 wrote to memory of 4100	3028	f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32Srv.exe	85
PID 3028 wrote to memory of 4100	3028	f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32Srv.exe	85
PID 4100 wrote to memory of 3100	4100	DesktopLayer.exe	86
PID 4100 wrote to memory of 3100	4100	DesktopLayer.exe	86
PID 3100 wrote to memory of 4540	3100	iexplore.exe	87
PID 3100 wrote to memory of 4540	3100	iexplore.exe	87
PID 3100 wrote to memory of 4540	3100	iexplore.exe	87

C:\Users\Admin\AppData\Local\Temp\f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32.exe
"C:\Users\Admin\AppData\Local\Temp\f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3532
- C:\Users\Admin\AppData\Local\Temp\f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32Srv.exe
  C:\Users\Admin\AppData\Local\Temp\f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3028
- - 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:4100
  - - 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:3100
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3100 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4540
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3532 -s 792
  2⤵
  - Program crash
  PID:1972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3532 -ip 3532
1⤵
PID:1928

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
2a1e551824bf2e6a69a922e26d2bf397

SHA1
c0a78aceb0b2c01d54c606944b3d6887f09020f7

SHA256
d8b86168fc295644a46bdd15cd39ae63a307ee26c782131b1c66c47715609f2b

SHA512
4a456cc2fb2ffbceb05181c304fa5cf4ffc2bd932bea759979260d5821f9c1b3ae824a11aea5163e440f9bef24a3a0cced7c12c313c7d1658dbc3cd00ca63cd7

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

Filesize
404B

MD5
87f09e10d0591e680e0a09e40b87f056

SHA1
c31cff6890de4aad075a8218854a0a4ce2ff9966

SHA256
b108c3d99ebdad8748492dba9dc0d53c1405717888219f6ef2d59c7642e34e28

SHA512
c5fcd3f4c5e3e1cd7a0242fa7e48dbaec991274476f661c84fbd8dcf7a73172a823e0eda1cb10e5ef64962e0cdc9e9a1b4ebceac89098341eb04ced14a94decc

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0GUUC90F\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\f77d4c746b2ead678c86307ab9272707eb9cdf13fea2901fa33aaf218e969b32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/3028-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3028-5-0x0000000000440000-0x000000000044F000-memory.dmp

Filesize
60KB

Download
memory/3028-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3532-18-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3532-17-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/3532-0-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/4100-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4100-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4100-13-0x00000000004D0000-0x00000000004D1000-memory.dmp

Filesize
4KB

Download