ramnit | f16bf464b5815c3d9fae7dd611fb5bcaa0c4e582317f679069050f1eaf2a54ad

Analysis

max time kernel
93s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 04:34

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General

Target

f16bf464b5815c3d9fae7dd611fb5bcaa0c4e582317f679069050f1eaf2a54ad.exe
Size

92KB
MD5

f756732bae91ef970afb3cc16655e78e
SHA1

7695cc771eb96ba5293a28880457c9a3545d800c
SHA256

f16bf464b5815c3d9fae7dd611fb5bcaa0c4e582317f679069050f1eaf2a54ad
SHA512

173cd89eb311a845f8ab447cef26b796490af88de90fccad1f9b908f8f352d00317046936015044d67e3f080202b801c3061417269772fd5a002119e4640ecdd
SSDEEP

1536:rVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApE:jnxwgxgfR/DVG7wBpE

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 1 IoCs

pid	Process
3400	WaterMark.exe

UPX packed file 15 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1064-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1064-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3400-22-0x0000000000400000-0x0000000000431000-memory.dmp	upx
behavioral2/memory/1064-30-0x0000000000400000-0x0000000000431000-memory.dmp	upx
behavioral2/memory/3400-28-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3400-27-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1064-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1064-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1064-2-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1064-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1064-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3400-37-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3400-36-0x0000000000400000-0x0000000000431000-memory.dmp	upx
behavioral2/memory/3400-39-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3400-40-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxA410.tmp	f16bf464b5815c3d9fae7dd611fb5bcaa0c4e582317f679069050f1eaf2a54ad.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	f16bf464b5815c3d9fae7dd611fb5bcaa0c4e582317f679069050f1eaf2a54ad.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	f16bf464b5815c3d9fae7dd611fb5bcaa0c4e582317f679069050f1eaf2a54ad.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
448	4684	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 3 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	f16bf464b5815c3d9fae7dd611fb5bcaa0c4e582317f679069050f1eaf2a54ad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaterMark.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150141"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "441175075"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{46D9833A-BC30-11EF-A7EA-EE6C25FCE24B} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150141"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31150141"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "456910493"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "459567197"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "456910493"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
3400	WaterMark.exe
3400	WaterMark.exe
3400	WaterMark.exe
3400	WaterMark.exe
3400	WaterMark.exe
3400	WaterMark.exe
3400	WaterMark.exe
3400	WaterMark.exe
3400	WaterMark.exe
3400	WaterMark.exe
3400	WaterMark.exe
3400	WaterMark.exe
3400	WaterMark.exe
3400	WaterMark.exe
3400	WaterMark.exe
3400	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3400	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4736	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4736	iexplore.exe
4736	iexplore.exe
1580	IEXPLORE.EXE
1580	IEXPLORE.EXE
1580	IEXPLORE.EXE
1580	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1064	f16bf464b5815c3d9fae7dd611fb5bcaa0c4e582317f679069050f1eaf2a54ad.exe
3400	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1064 wrote to memory of 3400	1064	f16bf464b5815c3d9fae7dd611fb5bcaa0c4e582317f679069050f1eaf2a54ad.exe	83
PID 1064 wrote to memory of 3400	1064	f16bf464b5815c3d9fae7dd611fb5bcaa0c4e582317f679069050f1eaf2a54ad.exe	83
PID 1064 wrote to memory of 3400	1064	f16bf464b5815c3d9fae7dd611fb5bcaa0c4e582317f679069050f1eaf2a54ad.exe	83
PID 3400 wrote to memory of 4684	3400	WaterMark.exe	84
PID 3400 wrote to memory of 4684	3400	WaterMark.exe	84
PID 3400 wrote to memory of 4684	3400	WaterMark.exe	84
PID 3400 wrote to memory of 4684	3400	WaterMark.exe	84
PID 3400 wrote to memory of 4684	3400	WaterMark.exe	84
PID 3400 wrote to memory of 4684	3400	WaterMark.exe	84
PID 3400 wrote to memory of 4684	3400	WaterMark.exe	84
PID 3400 wrote to memory of 4684	3400	WaterMark.exe	84
PID 3400 wrote to memory of 4684	3400	WaterMark.exe	84
PID 3400 wrote to memory of 4736	3400	WaterMark.exe	89
PID 3400 wrote to memory of 4736	3400	WaterMark.exe	89
PID 3400 wrote to memory of 312	3400	WaterMark.exe	90
PID 3400 wrote to memory of 312	3400	WaterMark.exe	90
PID 4736 wrote to memory of 1580	4736	iexplore.exe	92
PID 4736 wrote to memory of 1580	4736	iexplore.exe	92
PID 4736 wrote to memory of 1580	4736	iexplore.exe	92

C:\Users\Admin\AppData\Local\Temp\f16bf464b5815c3d9fae7dd611fb5bcaa0c4e582317f679069050f1eaf2a54ad.exe
"C:\Users\Admin\AppData\Local\Temp\f16bf464b5815c3d9fae7dd611fb5bcaa0c4e582317f679069050f1eaf2a54ad.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1064
- C:\Program Files (x86)\Microsoft\WaterMark.exe
  "C:\Program Files (x86)\Microsoft\WaterMark.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:3400
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:4684
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4684 -s 204
      4⤵
      Program crash
      PID:448
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4736
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4736 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:1580
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4684 -ip 4684
1⤵
PID:2132

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:\Program Files (x86)\Microsoft\WaterMark.exe

Filesize
92KB

MD5
f756732bae91ef970afb3cc16655e78e

SHA1
7695cc771eb96ba5293a28880457c9a3545d800c

SHA256
f16bf464b5815c3d9fae7dd611fb5bcaa0c4e582317f679069050f1eaf2a54ad

SHA512
173cd89eb311a845f8ab447cef26b796490af88de90fccad1f9b908f8f352d00317046936015044d67e3f080202b801c3061417269772fd5a002119e4640ecdd

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

Filesize
471B

MD5
ec237169ada59f1945749967a6d3d7f0

SHA1
e8fe32e8fa527409463d3fa0d63b6bdf709d7bd6

SHA256
b783f55456ca301f00aab79b6a0720bfb2450aefd094e6026231fab663152d70

SHA512
d5b5bff9f6afb36817c2c556e67c4ed7fc787a51bef623eb7150b596cc4cc88bee4b10b5eccae2c2ed0055653166f68bf75f2375ce4689666eb42330361de2d5

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

Filesize
404B

MD5
f35440110060c8e043573cb35707ea8d

SHA1
2ea6f78b57084a05381e7f71b1350b57d0de4bd2

SHA256
2679eab742ca7bebee4601835c029eef00b90616eb3e65fb9b4be5216f05077b

SHA512
1395e49e4a4d45211729227273adbee9bb2cdf09834c8886969ba0e600287303eeaadf94d534402c81898757810c1f05a65c1ba514133409065552c6a03db67a

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VKYZDMA5\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/1064-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1064-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1064-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1064-7-0x00000000008F0000-0x00000000008F1000-memory.dmp

Filesize
4KB

Download
memory/1064-3-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1064-1-0x0000000000401000-0x0000000000404000-memory.dmp

Filesize
12KB

Download
memory/1064-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1064-30-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1064-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1064-2-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1064-0-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/1064-25-0x0000000000401000-0x0000000000404000-memory.dmp

Filesize
12KB

Download
memory/1064-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3400-27-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3400-28-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3400-29-0x0000000000430000-0x0000000000431000-memory.dmp

Filesize
4KB

Download
memory/3400-31-0x0000000076F12000-0x0000000076F13000-memory.dmp

Filesize
4KB

Download
memory/3400-37-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3400-36-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/3400-38-0x0000000076F12000-0x0000000076F13000-memory.dmp

Filesize
4KB

Download
memory/3400-35-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/3400-39-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3400-40-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3400-22-0x0000000000400000-0x0000000000431000-memory.dmp

Filesize
196KB

Download
memory/4684-33-0x0000000000640000-0x0000000000641000-memory.dmp

Filesize
4KB

Download
memory/4684-34-0x0000000000620000-0x0000000000621000-memory.dmp

Filesize
4KB

Download