8dd5052860d570d22ae465f352319474ba55c2b7691f1916f4ac2d8585ff975d

Analysis

max time kernel
127s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
01/10/2022, 17:47

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

8dd5052860d570d22ae465f352319474ba55c2b7691f1916f4ac2d8585ff975d.dll
Size

136KB
MD5

593ab2703a3ac7af149f39d455cac5a0
SHA1

4a4f705c2e07993d79588f5e70c73a6b93444d21
SHA256

8dd5052860d570d22ae465f352319474ba55c2b7691f1916f4ac2d8585ff975d
SHA512

a10a8c35a7eb46740988c65bd2e062f984be1d76c95d3b3d55b21e764ab6d455c5fc019ec975ac600a24dde25d3c4d149eed5ae37c3969ded0f6ac77b8047e0b
SSDEEP

3072:0Aq7W3G6o54gD5umoWXPos7lcECU+pDsLnA9z5rrxrZv:zvWegBrsJBxR

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1528	rundll32mgr.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1528-138-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/1528-141-0x0000000000400000-0x0000000000420000-memory.dmp	upx
behavioral2/memory/1528-140-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/1528-143-0x0000000000400000-0x0000000000420000-memory.dmp	upx
behavioral2/memory/1528-142-0x0000000000400000-0x0000000000420000-memory.dmp	upx
behavioral2/memory/1528-144-0x0000000000400000-0x000000000041A000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

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

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30987728"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{32A96A84-41C3-11ED-89AC-FA09CB65A760} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30987728"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30987728"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "215871157"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30987728"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "215871157"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "238527365"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "371419189"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "238527365"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1528	rundll32mgr.exe
1528	rundll32mgr.exe
1528	rundll32mgr.exe
1528	rundll32mgr.exe
1528	rundll32mgr.exe
1528	rundll32mgr.exe
1528	rundll32mgr.exe
1528	rundll32mgr.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2332	iexplore.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1528	rundll32mgr.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2332	iexplore.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
4116	rundll32.exe
2332	iexplore.exe
2332	iexplore.exe
5072	IEXPLORE.EXE
5072	IEXPLORE.EXE
5072	IEXPLORE.EXE
5072	IEXPLORE.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
1528	rundll32mgr.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4444 wrote to memory of 4116	4444	rundll32.exe	82
PID 4444 wrote to memory of 4116	4444	rundll32.exe	82
PID 4444 wrote to memory of 4116	4444	rundll32.exe	82
PID 4116 wrote to memory of 1528	4116	rundll32.exe	83
PID 4116 wrote to memory of 1528	4116	rundll32.exe	83
PID 4116 wrote to memory of 1528	4116	rundll32.exe	83
PID 1528 wrote to memory of 2332	1528	rundll32mgr.exe	84
PID 1528 wrote to memory of 2332	1528	rundll32mgr.exe	84
PID 2332 wrote to memory of 5072	2332	iexplore.exe	85
PID 2332 wrote to memory of 5072	2332	iexplore.exe	85
PID 2332 wrote to memory of 5072	2332	iexplore.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8dd5052860d570d22ae465f352319474ba55c2b7691f1916f4ac2d8585ff975d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4444
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8dd5052860d570d22ae465f352319474ba55c2b7691f1916f4ac2d8585ff975d.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4116
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:1528
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2332
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2332 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:5072

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

Loading Replay Monitor...

Downloads

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

Filesize
471B

MD5
f525b778e6901e8c416e2920e4e3dc0b

SHA1
917ce8ae6d64bdd4dd438488176253022c57a083

SHA256
c9eee793aa4aa79f35d393f9f1d863483aaf4004dea6ac19bda868e92a71f8bd

SHA512
f6f47a4935c09769b8df316e1b459c7b153ed26ac409d4bf2ce62a1635dba4eaf7ce77de5ce83100d6f3ce7aadffed7591fb7cee7ac10a0c081a2d3c613f1ad8

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

Filesize
404B

MD5
865b09448521703b2257c699a073d448

SHA1
a48f80378aedf72dd07cb55218b4aaac7b0736c0

SHA256
8c98232f42d35e4cb07b3dd8bff5636fa9fe7b928431a313af6be9b0ddd98965

SHA512
8180fb5558a146826cf09ded52b9bafc065fcd965f5e78b2c06cb6602022bd144f1bf412e39623312b928deada8e164ed3f1bf5175776a07c11070e100647857

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

Filesize
88KB

MD5
a61ea5f2325332c52bff5bce3d161336

SHA1
3a883b8241f5f2efaa76367240db800d78a0209c

SHA256
e6f8a54ed663061527ab46b8e8efc2a0f3c99ae77829c0be0e50eb5b1b48415b

SHA512
fae031e0e7dcd719240bfe94a3f78d1aac73060324d5b65e0cbe564ce6d6781aaa5e930f0729293e3b502b7d07f53f3a72fb2048d44d93d36851aab8330479e5

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

Filesize
88KB

MD5
a61ea5f2325332c52bff5bce3d161336

SHA1
3a883b8241f5f2efaa76367240db800d78a0209c

SHA256
e6f8a54ed663061527ab46b8e8efc2a0f3c99ae77829c0be0e50eb5b1b48415b

SHA512
fae031e0e7dcd719240bfe94a3f78d1aac73060324d5b65e0cbe564ce6d6781aaa5e930f0729293e3b502b7d07f53f3a72fb2048d44d93d36851aab8330479e5

Download Submit
memory/1528-141-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1528-138-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1528-140-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/1528-143-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1528-142-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1528-144-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4116-139-0x0000000002000000-0x0000000002027000-memory.dmp

Filesize
156KB

Download