89cc0118e8523f29185f25c5aba53f907151dae7b5d54df289352c11137f88eb

Analysis

max time kernel
135s
max time network
171s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
30-10-2022 15:34

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General

Target

89cc0118e8523f29185f25c5aba53f907151dae7b5d54df289352c11137f88eb.exe
Size

564KB
MD5

83289a0e448e6c43d4ee5984524525e8
SHA1

472e1dac4ff9be110c040a5c76a72e12929ec37a
SHA256

89cc0118e8523f29185f25c5aba53f907151dae7b5d54df289352c11137f88eb
SHA512

777b7aad35a53b544237ffd6c84e059069e32fc0dbdb815dbbe5c10eefc04b0f5b9ff9cd9460478ec2e2e1d50e9d952a3757e8abc99d40090c01416d6f117000
SSDEEP

12288:u+MDtCi7NFlZnNqZ9xGrLpZ0ZHEqtgb0Uq:utplNFgxG5eZngb0p

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4888	nbfile0.exe
4840	nbfile1.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	nbfile0.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 2 IoCs

installer

resource	yara_rule
behavioral2/files/0x0009000000022e15-133.dat	nsis_installer_2
behavioral2/files/0x0009000000022e15-134.dat	nsis_installer_2

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{AD35826D-58F0-11ED-B696-D2D0017C8629} = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30993661"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	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 (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	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\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000e2728ad8693e804caf0ad2c227b142160000000002000000000010660000000100002000000014a40354105eae44c67d2268280331bac7d61f68524518b87aef89c5ccf077c2000000000e8000000002000020000000c9fc4e368a5868ad4dc351b54becdf0d1f64ed747b7702061de3c746eb719b3820000000b1b38f0561bea18f15f704b2732407525240414f447f68be3b636c326e57b74a400000001d0967f032e5f9973420679cc3c1918627ac2cd713366bb7b5c550e72c06e9eaf56fb93529dfb9b47de9ae36eadb36907c577010d8404705ef9fe45e913b3a2b	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000e2728ad8693e804caf0ad2c227b1421600000000020000000000106600000001000020000000facf1abb5a868769ac047f36ec9e0fe7a8e895e21dda4df0959eb04de5968c68000000000e8000000002000020000000add35c7f22118577abd9c3598eff22fa8094825859e9cbab39dc2ed60c4b45a120000000217b13c8ffe3103c22f9d228d1005f4401a90536560b9628dad0b3205ea1061c400000008a77e7079b60ecf9e5b8096cae1eaf8a83fd64f9374bb02c160676a9f200a4135dabf67f74b181aaeaa706617be1943dd41a247513ca412ede5c173743e9a419	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30993661"	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
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\TabbedBrowsing	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = c098e290fdecd801	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\VersionManager\LastCheckForUpdateLowDateTime = "2380309683"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 003ccd90fdecd801	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
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "373967618"	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
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	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\Recovery\AdminActive	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\VersionManager\LastUpdateLowDateTime = "2380309683"	IEXPLORE.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings	nbfile0.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4748	IEXPLORE.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4840	nbfile1.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4748	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
4840	nbfile1.exe
4748	IEXPLORE.EXE
4748	IEXPLORE.EXE
2404	IEXPLORE.EXE
2404	IEXPLORE.EXE
2404	IEXPLORE.EXE
2404	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4744 wrote to memory of 4888	4744	89cc0118e8523f29185f25c5aba53f907151dae7b5d54df289352c11137f88eb.exe	81
PID 4744 wrote to memory of 4888	4744	89cc0118e8523f29185f25c5aba53f907151dae7b5d54df289352c11137f88eb.exe	81
PID 4744 wrote to memory of 4888	4744	89cc0118e8523f29185f25c5aba53f907151dae7b5d54df289352c11137f88eb.exe	81
PID 4744 wrote to memory of 4840	4744	89cc0118e8523f29185f25c5aba53f907151dae7b5d54df289352c11137f88eb.exe	82
PID 4744 wrote to memory of 4840	4744	89cc0118e8523f29185f25c5aba53f907151dae7b5d54df289352c11137f88eb.exe	82
PID 4744 wrote to memory of 4840	4744	89cc0118e8523f29185f25c5aba53f907151dae7b5d54df289352c11137f88eb.exe	82
PID 4840 wrote to memory of 4748	4840	nbfile1.exe	83
PID 4840 wrote to memory of 4748	4840	nbfile1.exe	83
PID 4888 wrote to memory of 1476	4888	nbfile0.exe	84
PID 4888 wrote to memory of 1476	4888	nbfile0.exe	84
PID 4888 wrote to memory of 1476	4888	nbfile0.exe	84
PID 4888 wrote to memory of 2068	4888	nbfile0.exe	85
PID 4888 wrote to memory of 2068	4888	nbfile0.exe	85
PID 4888 wrote to memory of 2068	4888	nbfile0.exe	85
PID 4748 wrote to memory of 2404	4748	IEXPLORE.EXE	86
PID 4748 wrote to memory of 2404	4748	IEXPLORE.EXE	86
PID 4748 wrote to memory of 2404	4748	IEXPLORE.EXE	86
PID 4840 wrote to memory of 2256	4840	nbfile1.exe	87
PID 4840 wrote to memory of 2256	4840	nbfile1.exe	87
PID 4840 wrote to memory of 2256	4840	nbfile1.exe	87

C:\Users\Admin\AppData\Local\Temp\89cc0118e8523f29185f25c5aba53f907151dae7b5d54df289352c11137f88eb.exe
"C:\Users\Admin\AppData\Local\Temp\89cc0118e8523f29185f25c5aba53f907151dae7b5d54df289352c11137f88eb.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4744
- C:\Users\Admin\AppData\Local\Temp\nbfile0.exe
  C:\Users\Admin\AppData\Local\Temp\nbfile0.exe
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:4888
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\newsetup.vbs"
    3⤵
    PID:1476
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\1.vbs"
    3⤵
    PID:2068
- C:\Users\Admin\AppData\Local\Temp\nbfile1.exe
  C:\Users\Admin\AppData\Local\Temp\nbfile1.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4840
- - 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 behavior: GetForegroundWindowSpam
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4748
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4748 CREDAT:17410 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:2404
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\nbfile1.exe
    3⤵
    PID:2256

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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
35KB

MD5
08f52a4ccd01913b9a9691093a64366f

SHA1
e44c6620b4107a0f55e89f632c007a9a1ec88119

SHA256
85357e0168e34f2d01f319a0f129132b77f03cafb6820ecf6dda64a39266582d

SHA512
d6a9eed3a663f59047cb6d74aed375a7041060921ea80835f039726fa171fbf7b030c29a4c3059ae875058605f54bebfcba7d4daaf36b5ed1cb960e91d4755fc

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

Filesize
35KB

MD5
08f52a4ccd01913b9a9691093a64366f

SHA1
e44c6620b4107a0f55e89f632c007a9a1ec88119

SHA256
85357e0168e34f2d01f319a0f129132b77f03cafb6820ecf6dda64a39266582d

SHA512
d6a9eed3a663f59047cb6d74aed375a7041060921ea80835f039726fa171fbf7b030c29a4c3059ae875058605f54bebfcba7d4daaf36b5ed1cb960e91d4755fc

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

Filesize
467KB

MD5
74869a0346ab36bbba85022612505121

SHA1
2cd02f46f2f9f46eaf15fce40a3bf4781f80cf8a

SHA256
6de866b5c8abb1db9b2be231b365c1aa029118fbc58823f443f00e3a33dff18a

SHA512
723812083113cff82aa5e2243759c572518865e351cc81b7c2b85a05557862dbbd7a98b964ff6f3aa3802bb5d4dab01a14147211495fc5803d9ddb7b715f4de5

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

Filesize
467KB

MD5
74869a0346ab36bbba85022612505121

SHA1
2cd02f46f2f9f46eaf15fce40a3bf4781f80cf8a

SHA256
6de866b5c8abb1db9b2be231b365c1aa029118fbc58823f443f00e3a33dff18a

SHA512
723812083113cff82aa5e2243759c572518865e351cc81b7c2b85a05557862dbbd7a98b964ff6f3aa3802bb5d4dab01a14147211495fc5803d9ddb7b715f4de5

Download Submit
C:\newsetup.vbs

Filesize
631B

MD5
5e2c0c26e344eeae4304c9bb561ea89b

SHA1
4664f9d0f582ab586ab197515aa45499eb18db41

SHA256
f74ed58e1ff45165abf943ff0364fff8e5d873b9051ccba0da940399fbd8aac3

SHA512
4aa5f6d5c35160470f99808dab9a68f826e726eae0b7f536e71665b978d72502faf971c4f9f2a9a792b3aca04736c9c97d633da7b34b50dbd3831dcb67284d97

Download Submit
memory/4840-140-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/4840-145-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download