e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e

Analysis

max time kernel
125s
max time network
129s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
20/10/2022, 19:21

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General

Target

e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe
Size

120KB
MD5

a00ff1e969bd14e156d2906ae11d2640
SHA1

75acf44a565302e1cacc79828ee826923504cf5f
SHA256

e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e
SHA512

e363cf19f472716f4de1ca0bc7f75b4121f39b02a26c875d11099c483396fee1c0123447d129a8bf658dfb9243c99ba2bbe0a186d09b40884e320ff335b012bb
SSDEEP

1536:t96bx0D38opylZipii7LkoyXYTBgmqzgmvQxRjXrvXk8VPkvf98wO2z+gRqEpes:GO8opyl0ZspX0AgGQz/v0gir+k8s

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1328	Flmumz.exe
984	Flmumz.exe

Loads dropped DLL 2 IoCs

pid	Process
544	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe
544	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\Flmumz = "C:\\Users\\Admin\\AppData\\Roaming\\Flmumz.exe"	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1424 set thread context of 544	1424	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe	26
PID 1328 set thread context of 984	1328	Flmumz.exe	28

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Zoom	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IntelliForms	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\InternetRegistry	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{6534E401-50D3-11ED-9332-6A94EDCEDC7A} = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PageSetup	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "373075424"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
544	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	984	Flmumz.exe
Token: SeDebugPrivilege	1808	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1968	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1968	IEXPLORE.EXE
1968	IEXPLORE.EXE
1808	IEXPLORE.EXE
1808	IEXPLORE.EXE
1808	IEXPLORE.EXE
1808	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 36 IoCs

description	pid	Process	procid_target
PID 1424 wrote to memory of 544	1424	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe	26
PID 1424 wrote to memory of 544	1424	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe	26
PID 1424 wrote to memory of 544	1424	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe	26
PID 1424 wrote to memory of 544	1424	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe	26
PID 1424 wrote to memory of 544	1424	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe	26
PID 1424 wrote to memory of 544	1424	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe	26
PID 1424 wrote to memory of 544	1424	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe	26
PID 1424 wrote to memory of 544	1424	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe	26
PID 1424 wrote to memory of 544	1424	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe	26
PID 544 wrote to memory of 1328	544	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe	27
PID 544 wrote to memory of 1328	544	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe	27
PID 544 wrote to memory of 1328	544	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe	27
PID 544 wrote to memory of 1328	544	e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe	27
PID 1328 wrote to memory of 984	1328	Flmumz.exe	28
PID 1328 wrote to memory of 984	1328	Flmumz.exe	28
PID 1328 wrote to memory of 984	1328	Flmumz.exe	28
PID 1328 wrote to memory of 984	1328	Flmumz.exe	28
PID 1328 wrote to memory of 984	1328	Flmumz.exe	28
PID 1328 wrote to memory of 984	1328	Flmumz.exe	28
PID 1328 wrote to memory of 984	1328	Flmumz.exe	28
PID 1328 wrote to memory of 984	1328	Flmumz.exe	28
PID 1328 wrote to memory of 984	1328	Flmumz.exe	28
PID 984 wrote to memory of 1484	984	Flmumz.exe	29
PID 984 wrote to memory of 1484	984	Flmumz.exe	29
PID 984 wrote to memory of 1484	984	Flmumz.exe	29
PID 984 wrote to memory of 1484	984	Flmumz.exe	29
PID 1484 wrote to memory of 1968	1484	iexplore.exe	30
PID 1484 wrote to memory of 1968	1484	iexplore.exe	30
PID 1484 wrote to memory of 1968	1484	iexplore.exe	30
PID 1484 wrote to memory of 1968	1484	iexplore.exe	30
PID 1968 wrote to memory of 1808	1968	IEXPLORE.EXE	32
PID 1968 wrote to memory of 1808	1968	IEXPLORE.EXE	32
PID 1968 wrote to memory of 1808	1968	IEXPLORE.EXE	32
PID 1968 wrote to memory of 1808	1968	IEXPLORE.EXE	32
PID 984 wrote to memory of 1808	984	Flmumz.exe	32
PID 984 wrote to memory of 1808	984	Flmumz.exe	32

C:\Users\Admin\AppData\Local\Temp\e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe
"C:\Users\Admin\AppData\Local\Temp\e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1424
- C:\Users\Admin\AppData\Local\Temp\e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe
  C:\Users\Admin\AppData\Local\Temp\e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e.exe
  2⤵
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:544
- - C:\Users\Admin\AppData\Roaming\Flmumz.exe
    "C:\Users\Admin\AppData\Roaming\Flmumz.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:1328
  - - C:\Users\Admin\AppData\Roaming\Flmumz.exe
      C:\Users\Admin\AppData\Roaming\Flmumz.exe
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:984
    - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
        
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:1484
      - C:\Program Files\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1968
        
        C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1968 CREDAT:275457 /prefetch:2
        7⤵
        Modifies Internet Explorer settings
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:1808

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

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\Roaming\Flmumz.exe

Filesize
120KB

MD5
a00ff1e969bd14e156d2906ae11d2640

SHA1
75acf44a565302e1cacc79828ee826923504cf5f

SHA256
e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e

SHA512
e363cf19f472716f4de1ca0bc7f75b4121f39b02a26c875d11099c483396fee1c0123447d129a8bf658dfb9243c99ba2bbe0a186d09b40884e320ff335b012bb

Download Submit
C:\Users\Admin\AppData\Roaming\Flmumz.exe

Filesize
120KB

MD5
a00ff1e969bd14e156d2906ae11d2640

SHA1
75acf44a565302e1cacc79828ee826923504cf5f

SHA256
e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e

SHA512
e363cf19f472716f4de1ca0bc7f75b4121f39b02a26c875d11099c483396fee1c0123447d129a8bf658dfb9243c99ba2bbe0a186d09b40884e320ff335b012bb

Download Submit
C:\Users\Admin\AppData\Roaming\Flmumz.exe

Filesize
120KB

MD5
a00ff1e969bd14e156d2906ae11d2640

SHA1
75acf44a565302e1cacc79828ee826923504cf5f

SHA256
e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e

SHA512
e363cf19f472716f4de1ca0bc7f75b4121f39b02a26c875d11099c483396fee1c0123447d129a8bf658dfb9243c99ba2bbe0a186d09b40884e320ff335b012bb

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\B48FH1VB.txt

Filesize
601B

MD5
e8e696d80a621cf064a20efc58fe8d36

SHA1
92c7d61a718c17b8137ce0f0d66c324e332d2236

SHA256
36e84c3269f4793ddb75c0c2fff445e3e200cbc637f76fbeda127cf66bf9d456

SHA512
05b8a9802d26b549e01f21ffd3474017091406a4c1a7fd7dd60d6388bcbd5c56745f9db335fed32a8a6bfa21bb6fa84cb443db0b949cd69987d08b1702ff4e1c

Download Submit
\Users\Admin\AppData\Roaming\Flmumz.exe

Filesize
120KB

MD5
a00ff1e969bd14e156d2906ae11d2640

SHA1
75acf44a565302e1cacc79828ee826923504cf5f

SHA256
e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e

SHA512
e363cf19f472716f4de1ca0bc7f75b4121f39b02a26c875d11099c483396fee1c0123447d129a8bf658dfb9243c99ba2bbe0a186d09b40884e320ff335b012bb

Download Submit
\Users\Admin\AppData\Roaming\Flmumz.exe

Filesize
120KB

MD5
a00ff1e969bd14e156d2906ae11d2640

SHA1
75acf44a565302e1cacc79828ee826923504cf5f

SHA256
e471d4552d7641f3ff1b82739d0117a7a44674153afae207882ee5d6b9249e3e

SHA512
e363cf19f472716f4de1ca0bc7f75b4121f39b02a26c875d11099c483396fee1c0123447d129a8bf658dfb9243c99ba2bbe0a186d09b40884e320ff335b012bb

Download Submit
memory/544-60-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/544-61-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/544-66-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/544-59-0x0000000076151000-0x0000000076153000-memory.dmp

Filesize
8KB

Download
memory/544-55-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/984-77-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/984-76-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1328-67-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1328-73-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1424-54-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1424-57-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download