a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a

Analysis

max time kernel
136s
max time network
181s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
01/12/2022, 11:59

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General

Target

a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe
Size

581KB
MD5

aef0610d2027e6276adc38c20642e4ad
SHA1

3b698c7cc06c1cd062aa02bb05554f30edb0ee43
SHA256

a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a
SHA512

413bd7bde1ad6baf4075ee2629bce0fb8fdb6ccc85d3fa761398e87984a71d03f2e6bca67adae1d3fc3387bcf74fa599f5ec32eb75195cfbc81e62329dc47186
SSDEEP

12288:uoMDtCi7NFlZnNqZ9xGrLpZ0ZHEqtgb0U4:ufplNFgxG5eZngb0b

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1976	nbfile0.exe
1348	nbfile1.exe

Loads dropped DLL 7 IoCs

pid	Process
1060	a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe
1060	a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe
1060	a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe
1060	a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe
1348	nbfile1.exe
1348	nbfile1.exe
1348	nbfile1.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

NSIS installer 7 IoCs

installer

resource	yara_rule
behavioral1/files/0x00070000000133e5-69.dat	nsis_installer_2
behavioral1/files/0x00070000000133e5-67.dat	nsis_installer_2
behavioral1/files/0x00070000000133e5-65.dat	nsis_installer_2
behavioral1/files/0x00070000000133e5-64.dat	nsis_installer_2
behavioral1/files/0x00070000000133e5-70.dat	nsis_installer_2
behavioral1/files/0x00070000000133e5-71.dat	nsis_installer_2
behavioral1/files/0x00070000000133e5-72.dat	nsis_installer_2

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
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 (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 407423a04b07d901	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\PageSetup	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000003ba3e4c426a712408ee66a2e742163a200000000020000000000106600000001000020000000916ee332887f5287ee63a2d8a1166a374d2039a9f2b2543e20abe9e3116dafa3000000000e80000000020000200000005c485e0bee75b0660cb87ddea6eb79b545057e77395507648a4e0ead70a89c58200000007b14a0c90168d03b673993922ad66db08e52641bcd585c7ceca07d09f80c5c6340000000bd74119c492b8e4f39ef66ecf0018d228dfbe2c2687826767a7d1958bacf20c9dde2959c81fc903c7dfa62177846835a4ed02767089fefacc01ec269fe2fe51a	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	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\Toolbar	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
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\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	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\Toolbar\WebBrowser	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\Recovery\AdminActive\{AF93B161-733E-11ED-BD75-FAF5FAF3A79A} = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376256778"	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\AdminActive	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry	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\Main	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\IntelliForms	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\Main\WindowsSearch	IEXPLORE.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1976	nbfile0.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2036	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
1976	nbfile0.exe
2036	IEXPLORE.EXE
2036	IEXPLORE.EXE
1776	IEXPLORE.EXE
1776	IEXPLORE.EXE
1776	IEXPLORE.EXE
1776	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 1060 wrote to memory of 1976	1060	a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe	27
PID 1060 wrote to memory of 1976	1060	a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe	27
PID 1060 wrote to memory of 1976	1060	a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe	27
PID 1060 wrote to memory of 1976	1060	a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe	27
PID 1976 wrote to memory of 2036	1976	nbfile0.exe	28
PID 1976 wrote to memory of 2036	1976	nbfile0.exe	28
PID 1976 wrote to memory of 2036	1976	nbfile0.exe	28
PID 1976 wrote to memory of 2036	1976	nbfile0.exe	28
PID 2036 wrote to memory of 1776	2036	IEXPLORE.EXE	30
PID 2036 wrote to memory of 1776	2036	IEXPLORE.EXE	30
PID 2036 wrote to memory of 1776	2036	IEXPLORE.EXE	30
PID 2036 wrote to memory of 1776	2036	IEXPLORE.EXE	30
PID 1976 wrote to memory of 1748	1976	nbfile0.exe	31
PID 1976 wrote to memory of 1748	1976	nbfile0.exe	31
PID 1976 wrote to memory of 1748	1976	nbfile0.exe	31
PID 1976 wrote to memory of 1748	1976	nbfile0.exe	31
PID 1060 wrote to memory of 1348	1060	a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe	32
PID 1060 wrote to memory of 1348	1060	a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe	32
PID 1060 wrote to memory of 1348	1060	a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe	32
PID 1060 wrote to memory of 1348	1060	a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe	32
PID 1060 wrote to memory of 1348	1060	a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe	32
PID 1060 wrote to memory of 1348	1060	a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe	32
PID 1060 wrote to memory of 1348	1060	a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe	32
PID 1348 wrote to memory of 1680	1348	nbfile1.exe	33
PID 1348 wrote to memory of 1680	1348	nbfile1.exe	33
PID 1348 wrote to memory of 1680	1348	nbfile1.exe	33
PID 1348 wrote to memory of 1680	1348	nbfile1.exe	33
PID 1348 wrote to memory of 1680	1348	nbfile1.exe	33
PID 1348 wrote to memory of 1680	1348	nbfile1.exe	33
PID 1348 wrote to memory of 1680	1348	nbfile1.exe	33
PID 1348 wrote to memory of 1092	1348	nbfile1.exe	34
PID 1348 wrote to memory of 1092	1348	nbfile1.exe	34
PID 1348 wrote to memory of 1092	1348	nbfile1.exe	34
PID 1348 wrote to memory of 1092	1348	nbfile1.exe	34
PID 1348 wrote to memory of 1092	1348	nbfile1.exe	34
PID 1348 wrote to memory of 1092	1348	nbfile1.exe	34
PID 1348 wrote to memory of 1092	1348	nbfile1.exe	34

C:\Users\Admin\AppData\Local\Temp\a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe
"C:\Users\Admin\AppData\Local\Temp\a80817cb57081876691fa4139969426dbd6a1d37714e3befda94f0715330c33a.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1060
- C:\Users\Admin\AppData\Local\Temp\nbfile0.exe
  C:\Users\Admin\AppData\Local\Temp\nbfile0.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1976
- - C:\Program Files\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files\Internet Explorer\IEXPLORE.EXE" http://down.97199.com/install2/?sl3
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2036
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2036 CREDAT:275457 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:1776
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\nbfile0.exe
    3⤵
    PID:1748
- C:\Users\Admin\AppData\Local\Temp\nbfile1.exe
  C:\Users\Admin\AppData\Local\Temp\nbfile1.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1348
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\newsetup.vbs"
    3⤵
    PID:1680
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\1.vbs"
    3⤵
    PID:1092

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nbfile0.exe

Filesize
467KB

MD5
74869a0346ab36bbba85022612505121

SHA1
2cd02f46f2f9f46eaf15fce40a3bf4781f80cf8a

SHA256
6de866b5c8abb1db9b2be231b365c1aa029118fbc58823f443f00e3a33dff18a

SHA512
723812083113cff82aa5e2243759c572518865e351cc81b7c2b85a05557862dbbd7a98b964ff6f3aa3802bb5d4dab01a14147211495fc5803d9ddb7b715f4de5

Download Submit
C:\Users\Admin\AppData\Local\Temp\nbfile1.exe

Filesize
52KB

MD5
c4ddf11ebdbf9d8397d710d2cb4e2fab

SHA1
8008c97e7d6ff92deb3e1755a614f4afedca92b9

SHA256
67a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6

SHA512
3c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9

Download Submit
C:\Users\Admin\AppData\Local\Temp\nbfile1.exe

Filesize
52KB

MD5
c4ddf11ebdbf9d8397d710d2cb4e2fab

SHA1
8008c97e7d6ff92deb3e1755a614f4afedca92b9

SHA256
67a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6

SHA512
3c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9

Download Submit
C:\newsetup.vbs

Filesize
651B

MD5
4736e7158c27f244482f5a614b9dbdae

SHA1
d3a0e95a81e9e3ec95cfd596b25749a0e24e27b9

SHA256
b8229bc8d6b0013858fb9599cb510afa4566a439164b2c7444c449540a124acc

SHA512
cebf895dd3ec3822c42b78bac49c685b063cb5afcbcfb3850b073cb118d086c5fa75ec50b6e73d90e14f2c6b595752ad87910b8cf27378424d72a9ea309bf824

Download Submit
\Users\Admin\AppData\Local\Temp\nbfile0.exe

Filesize
467KB

MD5
74869a0346ab36bbba85022612505121

SHA1
2cd02f46f2f9f46eaf15fce40a3bf4781f80cf8a

SHA256
6de866b5c8abb1db9b2be231b365c1aa029118fbc58823f443f00e3a33dff18a

SHA512
723812083113cff82aa5e2243759c572518865e351cc81b7c2b85a05557862dbbd7a98b964ff6f3aa3802bb5d4dab01a14147211495fc5803d9ddb7b715f4de5

Download Submit
\Users\Admin\AppData\Local\Temp\nbfile0.exe

Filesize
467KB

MD5
74869a0346ab36bbba85022612505121

SHA1
2cd02f46f2f9f46eaf15fce40a3bf4781f80cf8a

SHA256
6de866b5c8abb1db9b2be231b365c1aa029118fbc58823f443f00e3a33dff18a

SHA512
723812083113cff82aa5e2243759c572518865e351cc81b7c2b85a05557862dbbd7a98b964ff6f3aa3802bb5d4dab01a14147211495fc5803d9ddb7b715f4de5

Download Submit
\Users\Admin\AppData\Local\Temp\nbfile1.exe

Filesize
52KB

MD5
c4ddf11ebdbf9d8397d710d2cb4e2fab

SHA1
8008c97e7d6ff92deb3e1755a614f4afedca92b9

SHA256
67a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6

SHA512
3c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9

Download Submit
\Users\Admin\AppData\Local\Temp\nbfile1.exe

Filesize
52KB

MD5
c4ddf11ebdbf9d8397d710d2cb4e2fab

SHA1
8008c97e7d6ff92deb3e1755a614f4afedca92b9

SHA256
67a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6

SHA512
3c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9

Download Submit
\Users\Admin\AppData\Local\Temp\nbfile1.exe

Filesize
52KB

MD5
c4ddf11ebdbf9d8397d710d2cb4e2fab

SHA1
8008c97e7d6ff92deb3e1755a614f4afedca92b9

SHA256
67a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6

SHA512
3c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9

Download Submit
\Users\Admin\AppData\Local\Temp\nbfile1.exe

Filesize
52KB

MD5
c4ddf11ebdbf9d8397d710d2cb4e2fab

SHA1
8008c97e7d6ff92deb3e1755a614f4afedca92b9

SHA256
67a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6

SHA512
3c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9

Download Submit
\Users\Admin\AppData\Local\Temp\nbfile1.exe

Filesize
52KB

MD5
c4ddf11ebdbf9d8397d710d2cb4e2fab

SHA1
8008c97e7d6ff92deb3e1755a614f4afedca92b9

SHA256
67a632049e45c25de35b533659624ca24f8e70447abca015bf5776ce6cb3ded6

SHA512
3c9be7b92208e8c0f57ab8048108714e06b2aa896a479f61637a93a9eacb4818fcb25ce3d4e1a24086558daeae65d4b482b2c1cfba3df202c396e2bc218362e9

Download Submit
memory/1060-55-0x0000000000220000-0x00000000002AA000-memory.dmp

Filesize
552KB

Download
memory/1348-68-0x0000000076831000-0x0000000076833000-memory.dmp

Filesize
8KB

Download
memory/1976-63-0x0000000000400000-0x000000000048A000-memory.dmp

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552KB

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memory/1976-61-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

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