ramnit | 7c1949ea5e964262dcb13a3cfae2f80ff8452f0dc9dbc406318831e6bb0d6361

Analysis

max time kernel
145s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
23/01/2024, 18:40

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General

Target

7046be33c3d28aadce52bceb51d42417.dll
Size

166KB
MD5

7046be33c3d28aadce52bceb51d42417
SHA1

407a87e1869bdb7ac1ca173b21a4c2eaaccc6b99
SHA256

7c1949ea5e964262dcb13a3cfae2f80ff8452f0dc9dbc406318831e6bb0d6361
SHA512

6714ac6ded417beab536c629060f54e308119feff13d66a0a75d82ef7fb6333bcc5c2c2a9eed2b6420ac0f76394a37ff3b428d7e7b0bc61b25f140a2cbdedecf
SSDEEP

1536:95lTUKCYmCgV5bT/2d1QYeC1H6XJoDDpA6bKs3XGLvthFUfjelRIhAu:NTU56gVxj27Nev5o/pA6bD8hFmec6u

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
2776	regsvr32mgr.exe
5236	WaterMark.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2776-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2776-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2776-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2776-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2776-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2776-16-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/5236-22-0x0000000000400000-0x0000000000435000-memory.dmp	upx
behavioral2/memory/5236-29-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/5236-33-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2776-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/5236-37-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/5236-38-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\regsvr32mgr.exe	regsvr32.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px4C8A.tmp	regsvr32mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	regsvr32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	regsvr32mgr.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4332	1288	WerFault.exe	90

Modifies Internet Explorer settings 1 TTPs 33 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31084076"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1985789953"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31084076"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31084076"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31084076"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1985789953"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "412800526"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\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-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1984852662"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{A1DDBF2C-BA1F-11EE-A0B6-6E89F5E0ECB7} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1984852662"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
5236	WaterMark.exe
5236	WaterMark.exe
5236	WaterMark.exe
5236	WaterMark.exe
5236	WaterMark.exe
5236	WaterMark.exe
5236	WaterMark.exe
5236	WaterMark.exe
5236	WaterMark.exe
5236	WaterMark.exe
5236	WaterMark.exe
5236	WaterMark.exe
5236	WaterMark.exe
5236	WaterMark.exe
5236	WaterMark.exe
5236	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5236	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3440	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3440	iexplore.exe
3440	iexplore.exe
4888	IEXPLORE.EXE
4888	IEXPLORE.EXE
4888	IEXPLORE.EXE
4888	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2776	regsvr32mgr.exe
5236	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 4084 wrote to memory of 5280	4084	regsvr32.exe	86
PID 4084 wrote to memory of 5280	4084	regsvr32.exe	86
PID 4084 wrote to memory of 5280	4084	regsvr32.exe	86
PID 5280 wrote to memory of 2776	5280	regsvr32.exe	95
PID 5280 wrote to memory of 2776	5280	regsvr32.exe	95
PID 5280 wrote to memory of 2776	5280	regsvr32.exe	95
PID 2776 wrote to memory of 5236	2776	regsvr32mgr.exe	89
PID 2776 wrote to memory of 5236	2776	regsvr32mgr.exe	89
PID 2776 wrote to memory of 5236	2776	regsvr32mgr.exe	89
PID 5236 wrote to memory of 1288	5236	WaterMark.exe	90
PID 5236 wrote to memory of 1288	5236	WaterMark.exe	90
PID 5236 wrote to memory of 1288	5236	WaterMark.exe	90
PID 5236 wrote to memory of 1288	5236	WaterMark.exe	90
PID 5236 wrote to memory of 1288	5236	WaterMark.exe	90
PID 5236 wrote to memory of 1288	5236	WaterMark.exe	90
PID 5236 wrote to memory of 1288	5236	WaterMark.exe	90
PID 5236 wrote to memory of 1288	5236	WaterMark.exe	90
PID 5236 wrote to memory of 1288	5236	WaterMark.exe	90
PID 5236 wrote to memory of 3440	5236	WaterMark.exe	99
PID 5236 wrote to memory of 3440	5236	WaterMark.exe	99
PID 5236 wrote to memory of 4300	5236	WaterMark.exe	100
PID 5236 wrote to memory of 4300	5236	WaterMark.exe	100
PID 3440 wrote to memory of 4888	3440	iexplore.exe	101
PID 3440 wrote to memory of 4888	3440	iexplore.exe	101
PID 3440 wrote to memory of 4888	3440	iexplore.exe	101

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\7046be33c3d28aadce52bceb51d42417.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4084
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\7046be33c3d28aadce52bceb51d42417.dll
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:5280
- - C:\Windows\SysWOW64\regsvr32mgr.exe
    C:\Windows\SysWOW64\regsvr32mgr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:2776

C:\Program Files (x86)\Microsoft\WaterMark.exe
"C:\Program Files (x86)\Microsoft\WaterMark.exe"
1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:5236
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\svchost.exe
  2⤵
  PID:1288
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1288 -s 208
    3⤵
    - Program crash
    PID:4332
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe"
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3440
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3440 CREDAT:17410 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:4888
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe"
  2⤵
  - Modifies Internet Explorer settings
  PID:4300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1288 -ip 1288
1⤵
PID:1420

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\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
f3990afbcdf64f1f806d1b926cf35b3d

SHA1
da1297f9ac1e9e9e7e78b567006e9248bfc212f7

SHA256
48c214dd545cc2718f7e844d699efae28f80d683340959e000bb41ad75dd6386

SHA512
9b5bc750b2e1038c82a93d51efe0d7dcf951ca594a62a90bac0ca1019d232afd07f9630e1ba1b609e128a9ba9c23c1ea8f1badd9e6b25f3eb591a936c89ee939

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

Filesize
404B

MD5
3c42af1c7444c222381775904b26ec8f

SHA1
0a82e9a46c84d4092216efbec207d9a4c7b47d19

SHA256
a8461ed758a351a7fac703831a113a312bea658c1e35e68e2afb2bc95e5adce8

SHA512
3e2e4583f2e1e79cb66b9acee4f4908a9200a715a0a3fdac91593908d9d15ab7fbb873456b42b28f8d3f5bfc0bbd0210965c02ce5dbc5c498e5229e2f117f8e8

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verCFD3.tmp

Filesize
15KB

MD5
1a545d0052b581fbb2ab4c52133846bc

SHA1
62f3266a9b9925cd6d98658b92adec673cbe3dd3

SHA256
557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

SHA512
bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

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

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\SysWOW64\regsvr32mgr.exe

Filesize
96KB

MD5
8c51fd9d6daa7b6137634de19a49452c

SHA1
db2a11cca434bacad2bf42adeecae38e99cf64f8

SHA256
528d190fc376cff62a83391a5ba10ae4ef0c02bedabd0360274ddc2784e11da3

SHA512
b93dd6c86d0618798a11dbaa2ded7dac659f6516ca4a87da7297601c27f340fffa4126a852c257654d562529273d8a3f639ec020ab54b879c68226deae549837

Download Submit
memory/1288-32-0x0000000000D10000-0x0000000000D11000-memory.dmp

Filesize
4KB

Download
memory/1288-34-0x0000000000CF0000-0x0000000000CF1000-memory.dmp

Filesize
4KB

Download
memory/2776-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2776-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2776-16-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2776-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2776-12-0x00000000008D0000-0x00000000008D1000-memory.dmp

Filesize
4KB

Download
memory/2776-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2776-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2776-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2776-5-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/5236-29-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5236-28-0x0000000000430000-0x0000000000431000-memory.dmp

Filesize
4KB

Download
memory/5236-36-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/5236-35-0x0000000077452000-0x0000000077453000-memory.dmp

Filesize
4KB

Download
memory/5236-37-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5236-38-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5236-33-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5236-30-0x0000000077452000-0x0000000077453000-memory.dmp

Filesize
4KB

Download
memory/5236-22-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/5280-0-0x0000000074E00000-0x0000000074E2C000-memory.dmp

Filesize
176KB

Download