7fa0430ab6a378efc052c26159103c38baa5cb3bfae902341d996ed63047a37c

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03-10-2022 19:27

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General

Target

7fa0430ab6a378efc052c26159103c38baa5cb3bfae902341d996ed63047a37c.dll
Size

732KB
MD5

05ba1da0d2bb1410b9296ede1c357230
SHA1

ddef348e19834c69adeb1a9aa6997f8784fb3570
SHA256

7fa0430ab6a378efc052c26159103c38baa5cb3bfae902341d996ed63047a37c
SHA512

90f944078e3c1bf6204881d03454987ad48c093ff2af2394d006c28cb8d6f7c81e30afa0ac23f275ca86faa09a4cdf28917f6ffe3078353dd63d2921ba7679c4
SSDEEP

12288:b0ywjWtUO+Oke04VGUl6vhOiue+bhPrRx4vSZqB7Y0lnMyC2+E9mw1I4/xBaRF:gCwsdPJyC299mF4MF

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2004	rundll32mgr.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000c0000000054a8-56.dat	upx
behavioral1/files/0x000c0000000054a8-57.dat	upx
behavioral1/files/0x000c0000000054a8-59.dat	upx
behavioral1/memory/2004-64-0x0000000000400000-0x0000000000456000-memory.dmp	upx
behavioral1/memory/2004-67-0x0000000000400000-0x0000000000456000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
316	rundll32.exe
316	rundll32.exe

Drops file in System32 directory 1 IoCs

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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1968	316	WerFault.exe	27

Modifies Internet Explorer settings 1 TTPs 53 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3d0000003d000000c3040000a2020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "371622491"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{7A37AE31-439C-11ED-965B-E20468906380} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{7A378721-439C-11ED-965B-E20468906380} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2004	rundll32mgr.exe
2004	rundll32mgr.exe
2004	rundll32mgr.exe
2004	rundll32mgr.exe
2004	rundll32mgr.exe
2004	rundll32mgr.exe
2004	rundll32mgr.exe
2004	rundll32mgr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2004	rundll32mgr.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1904	iexplore.exe
1964	iexplore.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
1964	iexplore.exe
1964	iexplore.exe
1904	iexplore.exe
1904	iexplore.exe
2040	IEXPLORE.EXE
2040	IEXPLORE.EXE
1144	IEXPLORE.EXE
1144	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 316	1448	rundll32.exe	27
PID 1448 wrote to memory of 316	1448	rundll32.exe	27
PID 1448 wrote to memory of 316	1448	rundll32.exe	27
PID 1448 wrote to memory of 316	1448	rundll32.exe	27
PID 1448 wrote to memory of 316	1448	rundll32.exe	27
PID 1448 wrote to memory of 316	1448	rundll32.exe	27
PID 1448 wrote to memory of 316	1448	rundll32.exe	27
PID 316 wrote to memory of 2004	316	rundll32.exe	28
PID 316 wrote to memory of 2004	316	rundll32.exe	28
PID 316 wrote to memory of 2004	316	rundll32.exe	28
PID 316 wrote to memory of 2004	316	rundll32.exe	28
PID 316 wrote to memory of 1968	316	rundll32.exe	29
PID 316 wrote to memory of 1968	316	rundll32.exe	29
PID 316 wrote to memory of 1968	316	rundll32.exe	29
PID 316 wrote to memory of 1968	316	rundll32.exe	29
PID 2004 wrote to memory of 1964	2004	rundll32mgr.exe	30
PID 2004 wrote to memory of 1964	2004	rundll32mgr.exe	30
PID 2004 wrote to memory of 1964	2004	rundll32mgr.exe	30
PID 2004 wrote to memory of 1964	2004	rundll32mgr.exe	30
PID 2004 wrote to memory of 1904	2004	rundll32mgr.exe	31
PID 2004 wrote to memory of 1904	2004	rundll32mgr.exe	31
PID 2004 wrote to memory of 1904	2004	rundll32mgr.exe	31
PID 2004 wrote to memory of 1904	2004	rundll32mgr.exe	31
PID 1964 wrote to memory of 1144	1964	iexplore.exe	33
PID 1964 wrote to memory of 1144	1964	iexplore.exe	33
PID 1964 wrote to memory of 1144	1964	iexplore.exe	33
PID 1964 wrote to memory of 1144	1964	iexplore.exe	33
PID 1904 wrote to memory of 2040	1904	iexplore.exe	34
PID 1904 wrote to memory of 2040	1904	iexplore.exe	34
PID 1904 wrote to memory of 2040	1904	iexplore.exe	34
PID 1904 wrote to memory of 2040	1904	iexplore.exe	34

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7fa0430ab6a378efc052c26159103c38baa5cb3bfae902341d996ed63047a37c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7fa0430ab6a378efc052c26159103c38baa5cb3bfae902341d996ed63047a37c.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:316
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2004
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1964
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1964 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1144
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1904
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1904 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2040
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 316 -s 236
    3⤵
    - Program crash
    PID:1968

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:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{7A378721-439C-11ED-965B-E20468906380}.dat

Filesize
3KB

MD5
c12f7314306caac8298cf69ca1b1cd10

SHA1
15ae6af1ea29b6b45a8a23a7fdb0277c45e563a6

SHA256
40eabe0c0d8cd18f64e65eb798a5b3b9ad468efc928ec44551bc4cd62e73a576

SHA512
3a22b391a97c3bfc27667b1bcd5e9e5d98972ba00555fdc983be4ae2d428d21076aea394eebd3017d8e8cc0ce6e7882e55a379f49f6612e892d917a87674a260

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{7A37AE31-439C-11ED-965B-E20468906380}.dat

Filesize
5KB

MD5
ce91db60958571c45bb9712101315c8d

SHA1
9f620711050a9193c84307a59999b0ef4491ec80

SHA256
17f1b6279ec3119f2d1610980c83268e5b660e08e6b34aaa0cede94b78604aa0

SHA512
7f3e37d0847b9aac790332ce7f824d352f1c0881522df790f409c21e7ff4d6fefb208dca013e06f88131e490c8f8a5b5333ba7f81a138226b694f9d9a9e37708

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\030CS7K8.txt

Filesize
608B

MD5
14e0b7b29e88031fa75f1d1a89838751

SHA1
b997d90c32fa7b54107cec1b60720500b0db1bdd

SHA256
9dce9f3c4a6db01be26309be1567bd81c772856ba3ee2fbfff35e4c48f1afa31

SHA512
83a35eacdc7f82479d6dabd68bf73e38fe3b569e62cbf318cf25006c7dc09dc126e16a5d91f7499ed2f236ce484155d524aa179c24ab559e3c8ba21d66df0356

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

Filesize
105KB

MD5
27761550031391c56a3a59d3cb7229a5

SHA1
643e456a5fb02a820e79e33fc66e8496f15e5955

SHA256
b6b449ecd550692a3d8d5424e00885155e898d5cbbde98543a5b7b877073daab

SHA512
2aa9607f71e4cb99ab4ccabe33a5f192117b733306cd8d1f4f3054077572e522bc71e1eae679877b5554d0bc3c1281fd5bcf822a2da5da291e6630f65470d0d6

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
105KB

MD5
27761550031391c56a3a59d3cb7229a5

SHA1
643e456a5fb02a820e79e33fc66e8496f15e5955

SHA256
b6b449ecd550692a3d8d5424e00885155e898d5cbbde98543a5b7b877073daab

SHA512
2aa9607f71e4cb99ab4ccabe33a5f192117b733306cd8d1f4f3054077572e522bc71e1eae679877b5554d0bc3c1281fd5bcf822a2da5da291e6630f65470d0d6

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
105KB

MD5
27761550031391c56a3a59d3cb7229a5

SHA1
643e456a5fb02a820e79e33fc66e8496f15e5955

SHA256
b6b449ecd550692a3d8d5424e00885155e898d5cbbde98543a5b7b877073daab

SHA512
2aa9607f71e4cb99ab4ccabe33a5f192117b733306cd8d1f4f3054077572e522bc71e1eae679877b5554d0bc3c1281fd5bcf822a2da5da291e6630f65470d0d6

Download Submit
memory/316-63-0x0000000000220000-0x0000000000276000-memory.dmp

Filesize
344KB

Download
memory/316-61-0x0000000010000000-0x00000000100B8000-memory.dmp

Filesize
736KB

Download
memory/316-54-0x0000000000000000-mapping.dmp

Download
memory/316-62-0x0000000000220000-0x0000000000276000-memory.dmp

Filesize
344KB

Download
memory/316-68-0x0000000000220000-0x0000000000276000-memory.dmp

Filesize
344KB

Download
memory/316-69-0x0000000000220000-0x0000000000276000-memory.dmp

Filesize
344KB

Download
memory/316-55-0x0000000076121000-0x0000000076123000-memory.dmp

Filesize
8KB

Download
memory/1968-60-0x0000000000000000-mapping.dmp

Download
memory/2004-64-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2004-58-0x0000000000000000-mapping.dmp

Download
memory/2004-67-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download