ramnit | 9a67ca9394f49740940434eb6aec56e8d95e46fcba069b7a31266adb1ce6ec13

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
06/11/2022, 20:53

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General

Target

9a67ca9394f49740940434eb6aec56e8d95e46fcba069b7a31266adb1ce6ec13.dll
Size

408KB
MD5

046e1550e3b43207ce668c406161164d
SHA1

8b457ddda0da97f117a5ad55f76e8fa312e92e0c
SHA256

9a67ca9394f49740940434eb6aec56e8d95e46fcba069b7a31266adb1ce6ec13
SHA512

30c69ac88fd7baaa1ff7e6281b4960e01aef1de8d9915e607d0c03ec9bc5e2f038b7f9d115c50a02f4101202d0e9a14fbe3043038025476c31f79a67686608fa
SSDEEP

12288:Loz83OtIEzW+/m/AyF7bCrO/E0McMxwFB:YbIEzW+/m/rF7kcRNXr

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
2228	rundll32mgr.exe
2264	WaterMark.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2228-139-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2264-145-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2264-148-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2264-149-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px8002.tmp	rundll32mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
512	1708	WerFault.exe	79
1248	1668	WerFault.exe	84

Modifies Internet Explorer settings 1 TTPs 38 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30995047"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1560076158"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{7F6944FD-5E5A-11ED-B696-F22D08015D11} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{7F621DB9-5E5A-11ED-B696-F22D08015D11} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "374562826"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1560076158"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30995047"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2264	WaterMark.exe
2264	WaterMark.exe
2264	WaterMark.exe
2264	WaterMark.exe
2264	WaterMark.exe
2264	WaterMark.exe
2264	WaterMark.exe
2264	WaterMark.exe
2264	WaterMark.exe
2264	WaterMark.exe
2264	WaterMark.exe
2264	WaterMark.exe
2264	WaterMark.exe
2264	WaterMark.exe
2264	WaterMark.exe
2264	WaterMark.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4628	iexplore.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2264	WaterMark.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4864	iexplore.exe
4628	iexplore.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
4864	iexplore.exe
4864	iexplore.exe
4628	iexplore.exe
4628	iexplore.exe
3424	IEXPLORE.EXE
3424	IEXPLORE.EXE
4008	IEXPLORE.EXE
4008	IEXPLORE.EXE
3424	IEXPLORE.EXE
3424	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 2636 wrote to memory of 1708	2636	rundll32.exe	79
PID 2636 wrote to memory of 1708	2636	rundll32.exe	79
PID 2636 wrote to memory of 1708	2636	rundll32.exe	79
PID 1708 wrote to memory of 2228	1708	rundll32.exe	80
PID 1708 wrote to memory of 2228	1708	rundll32.exe	80
PID 1708 wrote to memory of 2228	1708	rundll32.exe	80
PID 2228 wrote to memory of 2264	2228	rundll32mgr.exe	82
PID 2228 wrote to memory of 2264	2228	rundll32mgr.exe	82
PID 2228 wrote to memory of 2264	2228	rundll32mgr.exe	82
PID 2264 wrote to memory of 1668	2264	WaterMark.exe	84
PID 2264 wrote to memory of 1668	2264	WaterMark.exe	84
PID 2264 wrote to memory of 1668	2264	WaterMark.exe	84
PID 2264 wrote to memory of 1668	2264	WaterMark.exe	84
PID 2264 wrote to memory of 1668	2264	WaterMark.exe	84
PID 2264 wrote to memory of 1668	2264	WaterMark.exe	84
PID 2264 wrote to memory of 1668	2264	WaterMark.exe	84
PID 2264 wrote to memory of 1668	2264	WaterMark.exe	84
PID 2264 wrote to memory of 1668	2264	WaterMark.exe	84
PID 2264 wrote to memory of 4864	2264	WaterMark.exe	88
PID 2264 wrote to memory of 4864	2264	WaterMark.exe	88
PID 2264 wrote to memory of 4628	2264	WaterMark.exe	89
PID 2264 wrote to memory of 4628	2264	WaterMark.exe	89
PID 4628 wrote to memory of 3424	4628	iexplore.exe	91
PID 4628 wrote to memory of 3424	4628	iexplore.exe	91
PID 4628 wrote to memory of 3424	4628	iexplore.exe	91
PID 4864 wrote to memory of 4008	4864	iexplore.exe	90
PID 4864 wrote to memory of 4008	4864	iexplore.exe	90
PID 4864 wrote to memory of 4008	4864	iexplore.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9a67ca9394f49740940434eb6aec56e8d95e46fcba069b7a31266adb1ce6ec13.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2636
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9a67ca9394f49740940434eb6aec56e8d95e46fcba069b7a31266adb1ce6ec13.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1708
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of WriteProcessMemory
    PID:2228
  - - 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 WriteProcessMemory
      PID:2264
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:1668
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 1668 -s 208
        6⤵
        Program crash
        
        PID:1248
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4864
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4864 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4008
    - - 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:4628
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4628 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3424
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1708 -s 608
    3⤵
    - Program crash
    PID:512

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1708 -ip 1708
1⤵
PID:436

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1668 -ip 1668
1⤵
PID:5052

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
65KB

MD5
849ef19ec0155d79d4fa5bfb5657b106

SHA1
eb7e7ff208ecb40d35755d8f36e31e2482166299

SHA256
8b853e963eab5aa857b640be1d07d605a8bf6dd8bdf8884505b05034bbd87e04

SHA512
30384d9943f7eca4efbdcac52d3dd9c14446a2d75dc04ce4047feabe037c5177138f6bdcb055939dcc47608dfb50a54c9676f795d850c9a9de353f90252053a2

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

Filesize
65KB

MD5
849ef19ec0155d79d4fa5bfb5657b106

SHA1
eb7e7ff208ecb40d35755d8f36e31e2482166299

SHA256
8b853e963eab5aa857b640be1d07d605a8bf6dd8bdf8884505b05034bbd87e04

SHA512
30384d9943f7eca4efbdcac52d3dd9c14446a2d75dc04ce4047feabe037c5177138f6bdcb055939dcc47608dfb50a54c9676f795d850c9a9de353f90252053a2

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{7F621DB9-5E5A-11ED-B696-F22D08015D11}.dat

Filesize
5KB

MD5
cbe12a44f6139f081222d3904b77905b

SHA1
e245d0051670777a9d5cf8c75d40772f6099f75b

SHA256
90aaeb854034490502eecedcb15d6888eacc5478c6f8749d792530e77064266e

SHA512
60672ad5ab3f093ef120357a81bdd471b871eeef208993643ae565e6e9fee44aa7d0a00cdf0ce39031815fcca648d16209f68c7ef1a89641961b7834d24e308b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{7F6944FD-5E5A-11ED-B696-F22D08015D11}.dat

Filesize
4KB

MD5
1e75fea8b2599c8cbb9717aa82b082b5

SHA1
9604ebc2d43ef20c6ce12534c2a649bd17c7b7d6

SHA256
991858d02388d1bf35548abe6c82c33da2c0321e723c5a4e4a2ee0cd72e4b306

SHA512
e34dd5dfc266b18a0b79b232879f25fd22d1a6ed4ba0310a5137fe2da9db76216c8a35cf2d4a2569a724e241cdb1c2068c545cdf16d4609d293c9f6cac19286c

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
65KB

MD5
849ef19ec0155d79d4fa5bfb5657b106

SHA1
eb7e7ff208ecb40d35755d8f36e31e2482166299

SHA256
8b853e963eab5aa857b640be1d07d605a8bf6dd8bdf8884505b05034bbd87e04

SHA512
30384d9943f7eca4efbdcac52d3dd9c14446a2d75dc04ce4047feabe037c5177138f6bdcb055939dcc47608dfb50a54c9676f795d850c9a9de353f90252053a2

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
65KB

MD5
849ef19ec0155d79d4fa5bfb5657b106

SHA1
eb7e7ff208ecb40d35755d8f36e31e2482166299

SHA256
8b853e963eab5aa857b640be1d07d605a8bf6dd8bdf8884505b05034bbd87e04

SHA512
30384d9943f7eca4efbdcac52d3dd9c14446a2d75dc04ce4047feabe037c5177138f6bdcb055939dcc47608dfb50a54c9676f795d850c9a9de353f90252053a2

Download Submit
memory/1708-143-0x000000007C340000-0x000000007C3A7000-memory.dmp

Filesize
412KB

Download
memory/2228-140-0x0000000000460000-0x0000000000481000-memory.dmp

Filesize
132KB

Download
memory/2228-139-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2264-144-0x0000000001F00000-0x0000000001F21000-memory.dmp

Filesize
132KB

Download
memory/2264-145-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2264-148-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2264-149-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download