ramnit | 1cfeed31a29583193c9ae6477ce9f4e50b86614a9794833e37792989660a1092

Analysis

max time kernel
132s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
06/11/2022, 21:30

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General

Target

1cfeed31a29583193c9ae6477ce9f4e50b86614a9794833e37792989660a1092.dll
Size

408KB
MD5

073500ec69c090b55df028bb28bc24e0
SHA1

9654bb1883890b822767472ac54dc03791d6ac96
SHA256

1cfeed31a29583193c9ae6477ce9f4e50b86614a9794833e37792989660a1092
SHA512

5065df48ff09066d53b05a2ee714e9572831b4287b96a28306953824bd13eb87c6a29eaeb324afe719b29b04eff864ef9e1c2c991f56a4e587c13fac7464fe09
SSDEEP

6144:N/u6A81l3T4/Db2TcwQGCbA2HiIasZsQeewQeeCQeesQeeKFQeefQeeytPUaYeza:I6A81u7QQGo9iILbtP6YLaYhCmc/Z/

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
2116	regsvr32mgr.exe
4648	WaterMark.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2116-139-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2116-138-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2116-142-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4648-150-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/4648-151-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/4648-152-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/4648-153-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/4648-154-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/4648-155-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/4648-156-0x0000000000400000-0x0000000000421000-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\WaterMark.exe	regsvr32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxE024.tmp	regsvr32mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	regsvr32mgr.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4428	536	WerFault.exe	86

Modifies Internet Explorer settings 1 TTPs 29 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "374562021"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2165854331"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30995045"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30995045"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30995045"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2177260620"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2165854331"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{AC7588C6-5E58-11ED-A0EE-4A7057C3C021} = "0"	iexplore.exe

Modifies registry class 4 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C58F1580-0DF3-401C-93B1-2D9DDA61CF04}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C58F1580-0DF3-401C-93B1-2D9DDA61CF04}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{C58F1580-0DF3-401C-93B1-2D9DDA61CF04}\1.0	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4648	WaterMark.exe
4648	WaterMark.exe
4648	WaterMark.exe
4648	WaterMark.exe
4648	WaterMark.exe
4648	WaterMark.exe
4648	WaterMark.exe
4648	WaterMark.exe
4648	WaterMark.exe
4648	WaterMark.exe
4648	WaterMark.exe
4648	WaterMark.exe
4648	WaterMark.exe
4648	WaterMark.exe
4648	WaterMark.exe
4648	WaterMark.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3408	iexplore.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4648	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3408	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3408	iexplore.exe
3408	iexplore.exe
3156	IEXPLORE.EXE
3156	IEXPLORE.EXE
3156	IEXPLORE.EXE
3156	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2116	regsvr32mgr.exe
4648	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1268 wrote to memory of 1972	1268	regsvr32.exe	83
PID 1268 wrote to memory of 1972	1268	regsvr32.exe	83
PID 1268 wrote to memory of 1972	1268	regsvr32.exe	83
PID 1972 wrote to memory of 2116	1972	regsvr32.exe	84
PID 1972 wrote to memory of 2116	1972	regsvr32.exe	84
PID 1972 wrote to memory of 2116	1972	regsvr32.exe	84
PID 2116 wrote to memory of 4648	2116	regsvr32mgr.exe	85
PID 2116 wrote to memory of 4648	2116	regsvr32mgr.exe	85
PID 2116 wrote to memory of 4648	2116	regsvr32mgr.exe	85
PID 4648 wrote to memory of 536	4648	WaterMark.exe	86
PID 4648 wrote to memory of 536	4648	WaterMark.exe	86
PID 4648 wrote to memory of 536	4648	WaterMark.exe	86
PID 4648 wrote to memory of 536	4648	WaterMark.exe	86
PID 4648 wrote to memory of 536	4648	WaterMark.exe	86
PID 4648 wrote to memory of 536	4648	WaterMark.exe	86
PID 4648 wrote to memory of 536	4648	WaterMark.exe	86
PID 4648 wrote to memory of 536	4648	WaterMark.exe	86
PID 4648 wrote to memory of 536	4648	WaterMark.exe	86
PID 4648 wrote to memory of 3408	4648	WaterMark.exe	89
PID 4648 wrote to memory of 3408	4648	WaterMark.exe	89
PID 4648 wrote to memory of 2052	4648	WaterMark.exe	90
PID 4648 wrote to memory of 2052	4648	WaterMark.exe	90
PID 3408 wrote to memory of 3156	3408	iexplore.exe	91
PID 3408 wrote to memory of 3156	3408	iexplore.exe	91
PID 3408 wrote to memory of 3156	3408	iexplore.exe	91

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\1cfeed31a29583193c9ae6477ce9f4e50b86614a9794833e37792989660a1092.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\1cfeed31a29583193c9ae6477ce9f4e50b86614a9794833e37792989660a1092.dll
  2⤵
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1972
- - 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:2116
  - - C:\Program Files (x86)\Microsoft\WaterMark.exe
      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of UnmapMainImage
      Suspicious use of WriteProcessMemory
      PID:4648
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:536
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 536 -s 208
        6⤵
        Program crash
        
        PID:4428
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:3408
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3408 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3156
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:2052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 536 -ip 536
1⤵
PID:1004

Network

MITRE ATT&CK Enterprise v6

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

Filesize
59KB

MD5
0e0f0ae845d89c22bb6385f64a6b85fd

SHA1
0f3f1e7f18ab81572c5ce938d3880d4a5d7100ac

SHA256
5a5b85c582d5d4b3b912ee6789babebf8ae6d87330d0d33d87274841952899dd

SHA512
baec989a6329a2a60d954e83279fd57ba2000f8ed79e7a02d145bf44a5bffcd9a831c63f4b7d44e40c51e40b1dfbe72c5cebac04d0ce7b2295e3fd191b122350

Download Submit
C:\Program Files (x86)\Microsoft\WaterMark.exe

Filesize
59KB

MD5
0e0f0ae845d89c22bb6385f64a6b85fd

SHA1
0f3f1e7f18ab81572c5ce938d3880d4a5d7100ac

SHA256
5a5b85c582d5d4b3b912ee6789babebf8ae6d87330d0d33d87274841952899dd

SHA512
baec989a6329a2a60d954e83279fd57ba2000f8ed79e7a02d145bf44a5bffcd9a831c63f4b7d44e40c51e40b1dfbe72c5cebac04d0ce7b2295e3fd191b122350

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

Filesize
471B

MD5
0ef90204485649be625ea2be1b9018fb

SHA1
28fbc0852140ec51d0c097a4962a160afa4d754b

SHA256
c8028acd9a8c8c795b87cf835fc3182d003264608f161baa0ca020711b22bca0

SHA512
b8bbba0dcc6cb6f87efb47a605953c93fcf93c5a65520b822ebfee25754632d6bb66c2a946f457e1e40a92556683ddb9d14f2703782833e12d7e37bb3b7fcec5

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

Filesize
434B

MD5
6a41fafe19d753217c8c5851c48bd07a

SHA1
994b623110f58fcf5d521062363b4beb894cb63c

SHA256
507097d5decb92f7a46cb59ac01970e8c1030cfb0cd5347a78a041d183cbf47d

SHA512
9d90df06cf40da7c5dc285c70462d24694bcf00ce29e5e9752c137cde8bb5458137be1ebddec5b6c653cc8eae193ac5086f1f30a48cb0689dd39db2c714e81ba

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

Filesize
59KB

MD5
0e0f0ae845d89c22bb6385f64a6b85fd

SHA1
0f3f1e7f18ab81572c5ce938d3880d4a5d7100ac

SHA256
5a5b85c582d5d4b3b912ee6789babebf8ae6d87330d0d33d87274841952899dd

SHA512
baec989a6329a2a60d954e83279fd57ba2000f8ed79e7a02d145bf44a5bffcd9a831c63f4b7d44e40c51e40b1dfbe72c5cebac04d0ce7b2295e3fd191b122350

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

Filesize
59KB

MD5
0e0f0ae845d89c22bb6385f64a6b85fd

SHA1
0f3f1e7f18ab81572c5ce938d3880d4a5d7100ac

SHA256
5a5b85c582d5d4b3b912ee6789babebf8ae6d87330d0d33d87274841952899dd

SHA512
baec989a6329a2a60d954e83279fd57ba2000f8ed79e7a02d145bf44a5bffcd9a831c63f4b7d44e40c51e40b1dfbe72c5cebac04d0ce7b2295e3fd191b122350

Download Submit
memory/2116-138-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2116-142-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2116-139-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4648-150-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4648-151-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4648-152-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4648-153-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4648-154-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4648-155-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4648-156-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download