ramnit | 7c151ee96dd979835f0c680423092d54ea9df805a7f233d8d55ff21930cf1acd

Analysis

max time kernel
130s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
29-11-2022 07:51

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General

Target

7c151ee96dd979835f0c680423092d54ea9df805a7f233d8d55ff21930cf1acd.dll
Size

264KB
MD5

c821f4ae5b74117d497124b7871e5330
SHA1

cce83413fa096db4d4edf027c696441e83cd388d
SHA256

7c151ee96dd979835f0c680423092d54ea9df805a7f233d8d55ff21930cf1acd
SHA512

50c95770a2b5d7684031c29f20d91e29c3edacd84c51f56d16eb4a23c0169bdd2acd34901a6bf67699852fb7ebb38aa9f7c0ae52d5a52f154fa865632d27678b
SSDEEP

3072:Pn4cV8gf2u41Z5tKlw9SFjN5vKRYkE4GKLYXlJV9b8LXSI2ft/qZm9Y:v4y8gOl2ljNx05EAYP91yI9Y

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
4532	rundll32mgr.exe
4868	WaterMark.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4532-139-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4532-140-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4532-143-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4868-151-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/4868-152-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/4868-153-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/4868-154-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/4868-157-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/4868-158-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/4868-159-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/4868-160-0x0000000000400000-0x0000000000436000-memory.dmp	upx
behavioral2/memory/4868-161-0x0000000000400000-0x0000000000421000-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 created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px75E0.tmp	rundll32mgr.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2204	4920	WerFault.exe	83

Modifies Internet Explorer settings 1 TTPs 31 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\Recovery\AdminActive	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
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376578221"	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
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	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\DomainSuggestion\FileNames	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 (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	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
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 (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\Recovery\AdminActive\{0098A7E3-70AF-11ED-B696-E64E24383C5C} = "0"	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\AdminActive\{009B0BEE-70AF-11ED-B696-E64E24383C5C} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	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
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\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\PendingRecovery	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

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4868	WaterMark.exe
4868	WaterMark.exe
4868	WaterMark.exe
4868	WaterMark.exe
4868	WaterMark.exe
4868	WaterMark.exe
4868	WaterMark.exe
4868	WaterMark.exe
4868	WaterMark.exe
4868	WaterMark.exe
4868	WaterMark.exe
4868	WaterMark.exe
4868	WaterMark.exe
4868	WaterMark.exe
4868	WaterMark.exe
4868	WaterMark.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3504	iexplore.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4868	WaterMark.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3504	iexplore.exe
4252	iexplore.exe

Suspicious use of SetWindowsHookEx 10 IoCs

pid	Process
4252	iexplore.exe
3504	iexplore.exe
4252	iexplore.exe
3504	iexplore.exe
4288	IEXPLORE.EXE
4288	IEXPLORE.EXE
884	IEXPLORE.EXE
884	IEXPLORE.EXE
4288	IEXPLORE.EXE
4288	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
4532	rundll32mgr.exe
4868	WaterMark.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1052 wrote to memory of 2120	1052	rundll32.exe	80
PID 1052 wrote to memory of 2120	1052	rundll32.exe	80
PID 1052 wrote to memory of 2120	1052	rundll32.exe	80
PID 2120 wrote to memory of 4532	2120	rundll32.exe	81
PID 2120 wrote to memory of 4532	2120	rundll32.exe	81
PID 2120 wrote to memory of 4532	2120	rundll32.exe	81
PID 4532 wrote to memory of 4868	4532	rundll32mgr.exe	82
PID 4532 wrote to memory of 4868	4532	rundll32mgr.exe	82
PID 4532 wrote to memory of 4868	4532	rundll32mgr.exe	82
PID 4868 wrote to memory of 4920	4868	WaterMark.exe	83
PID 4868 wrote to memory of 4920	4868	WaterMark.exe	83
PID 4868 wrote to memory of 4920	4868	WaterMark.exe	83
PID 4868 wrote to memory of 4920	4868	WaterMark.exe	83
PID 4868 wrote to memory of 4920	4868	WaterMark.exe	83
PID 4868 wrote to memory of 4920	4868	WaterMark.exe	83
PID 4868 wrote to memory of 4920	4868	WaterMark.exe	83
PID 4868 wrote to memory of 4920	4868	WaterMark.exe	83
PID 4868 wrote to memory of 4920	4868	WaterMark.exe	83
PID 4868 wrote to memory of 4252	4868	WaterMark.exe	87
PID 4868 wrote to memory of 4252	4868	WaterMark.exe	87
PID 4868 wrote to memory of 3504	4868	WaterMark.exe	88
PID 4868 wrote to memory of 3504	4868	WaterMark.exe	88
PID 3504 wrote to memory of 4288	3504	iexplore.exe	90
PID 4252 wrote to memory of 884	4252	iexplore.exe	89
PID 3504 wrote to memory of 4288	3504	iexplore.exe	90
PID 3504 wrote to memory of 4288	3504	iexplore.exe	90
PID 4252 wrote to memory of 884	4252	iexplore.exe	89
PID 4252 wrote to memory of 884	4252	iexplore.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7c151ee96dd979835f0c680423092d54ea9df805a7f233d8d55ff21930cf1acd.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1052
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7c151ee96dd979835f0c680423092d54ea9df805a7f233d8d55ff21930cf1acd.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:2120
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:4532
  - - 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:4868
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:4920
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4920 -s 84
        6⤵
        Program crash
        
        PID:2204
    - - 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:4252
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4252 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:884
    - - 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:3504
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3504 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4288

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4920 -ip 4920
1⤵
PID:5008

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
169KB

MD5
01a0e38aa538eb123f13c8e485e9e60c

SHA1
34fa49994b1b5db890412415f94d13e4b4f1abee

SHA256
eef6fb84670b713fec9a1eca265af13bff63d8458b0cbf678b611222da184fbc

SHA512
ed0f7edcfaaa12e5192563c7398c8bd761ff84e00d0e100af80a9155b4fcde5a542b890b872429c6d365349fcc51a15cb5b2198fe12f4e4a1a89e805b1c5cdd1

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

Filesize
169KB

MD5
01a0e38aa538eb123f13c8e485e9e60c

SHA1
34fa49994b1b5db890412415f94d13e4b4f1abee

SHA256
eef6fb84670b713fec9a1eca265af13bff63d8458b0cbf678b611222da184fbc

SHA512
ed0f7edcfaaa12e5192563c7398c8bd761ff84e00d0e100af80a9155b4fcde5a542b890b872429c6d365349fcc51a15cb5b2198fe12f4e4a1a89e805b1c5cdd1

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{0098A7E3-70AF-11ED-B696-E64E24383C5C}.dat

Filesize
5KB

MD5
2713ce97982ae7e98c98ac7905a1a7ce

SHA1
41a0c80353cdded2935b880bb3676c53a91550f8

SHA256
328df557b591b8f506da7f5345b3b4425347921fa5e7f9352f5d109c62997485

SHA512
4e6e1c0ce84f61f8a0020eddb779509559cc3d63c320dc96eb46bae9e0a09657e498d5c590a6c2efc1c8219be72fce6abf8210ae225e28d61c3cac13750bea46

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{009B0BEE-70AF-11ED-B696-E64E24383C5C}.dat

Filesize
5KB

MD5
f615b83848e374d7aa9138f4713f8140

SHA1
7b6667d9bd2505223189e17d222c79fc60f0f043

SHA256
3bb9e66180236331bef1482f3a14e9e76d1fed2e5aff0a9ed8c3877ff099bba8

SHA512
4b306e4639a20ebd32e207b30c29950a83d51cac5524f5b150e5c7813d7dfa6f3b7edb8767c8ee4d057807a31865a0b7831592ede41cfc48ac25527b326e628c

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

Filesize
169KB

MD5
01a0e38aa538eb123f13c8e485e9e60c

SHA1
34fa49994b1b5db890412415f94d13e4b4f1abee

SHA256
eef6fb84670b713fec9a1eca265af13bff63d8458b0cbf678b611222da184fbc

SHA512
ed0f7edcfaaa12e5192563c7398c8bd761ff84e00d0e100af80a9155b4fcde5a542b890b872429c6d365349fcc51a15cb5b2198fe12f4e4a1a89e805b1c5cdd1

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

Filesize
169KB

MD5
01a0e38aa538eb123f13c8e485e9e60c

SHA1
34fa49994b1b5db890412415f94d13e4b4f1abee

SHA256
eef6fb84670b713fec9a1eca265af13bff63d8458b0cbf678b611222da184fbc

SHA512
ed0f7edcfaaa12e5192563c7398c8bd761ff84e00d0e100af80a9155b4fcde5a542b890b872429c6d365349fcc51a15cb5b2198fe12f4e4a1a89e805b1c5cdd1

Download Submit
memory/2120-133-0x0000000010000000-0x0000000010043000-memory.dmp

Filesize
268KB

Download
memory/4532-139-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4532-143-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4532-140-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4868-154-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/4868-152-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/4868-153-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/4868-151-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/4868-157-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/4868-158-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/4868-159-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/4868-160-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/4868-161-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download