041698926287077b77e276b4cd5fa52964b3f17693ccc4ca9311b05499f0f7fc

Analysis

max time kernel
210s
max time network
230s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
07/11/2022, 18:57

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General

Target

041698926287077b77e276b4cd5fa52964b3f17693ccc4ca9311b05499f0f7fc.exe
Size

564KB
MD5

0f572a251c8bf0cfd1e265996a90e606
SHA1

e293aa35cee656fbbe2cee9b553399a35bb463f4
SHA256

041698926287077b77e276b4cd5fa52964b3f17693ccc4ca9311b05499f0f7fc
SHA512

3786fd1a4806e6e9460ad936e7077e178698810fa6020cdff2a20f2ad6f22548a9da4f9f0114b41550002474f768b77d9567d705c1b7dcf632f64c66af3d542e
SSDEEP

12288:u+MDtCi7NFlZnNqZ9xGrLpZ0ZHEqtgb0UW:utplNFgxG5eZngb0t

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1192	nbfile0.exe
4624	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-1-5-21-2295526160-1155304984-640977766-1000\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/0x0007000000022e5a-133.dat	nsis_installer_2
behavioral2/files/0x0007000000022e5a-134.dat	nsis_installer_2

Modifies Internet Explorer settings 1 TTPs 32 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
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\Recovery\AdminActive\{F30F1791-5F71-11ED-89AC-CA2A13AD51D0} = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000975fab978604b14697eb522259e91a100000000002000000000010660000000100002000000030e8ed4516fb617a5510a3457ab4f68dd307dc46829f196132e96f140c1dd208000000000e8000000002000020000000e195bda08c399926811449eabf11cfadb482a2f7d2998bd5fa3580f9bd5414d32000000045441e46d8361ca4f0f78a1b8e3f4379dedaecb4295a99aeea55f2616d317b7540000000d7ae1140db7a10f0a783877d7a9fe1d4c7a63cd74e81346659d4cae32c417b795521a7f1f204380329a623f4e8f7fc47eadbd4bb4ccac6d1203c4cc73cd49531	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main	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\Recovery\PendingRecovery	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = c0eee3cf7ef3d801	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\Recovery\AdminActive	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
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\DomainSuggestion\FileNames\	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	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\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3355792708"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 6008a7cb7ef3d801	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000975fab978604b14697eb522259e91a10000000000200000000001066000000010000200000002d9d0b23b73ddd748044fe02ab49cfa01aed866b1d61cfd21d07c72a3a9bb775000000000e800000000200002000000028760ba70f5aaf0060b76d8588ab864f95fe6e48ed11b778f5246d0ef76ffefc200000005bae9f11eaf0736e363b396febe476f0566dc6235feab2dde7afb6896a97c08c40000000d17f29016e3e0a2b51e4ca71d7e1f2f4fcca72617934b331ab965be69791eeb992edff7a63721462d6dc5e360a41ec3e39fb4372efeaccb17b0f6d2cf15d7d27	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "374682834"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3355792708"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30995326"	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\LastCheckForUpdateHighDateTime = "30995326"	IEXPLORE.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings	nbfile0.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1524	IEXPLORE.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4624	nbfile1.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1524	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
4624	nbfile1.exe
1524	IEXPLORE.EXE
1524	IEXPLORE.EXE
2408	IEXPLORE.EXE
2408	IEXPLORE.EXE
2408	IEXPLORE.EXE
2408	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1644 wrote to memory of 1192	1644	041698926287077b77e276b4cd5fa52964b3f17693ccc4ca9311b05499f0f7fc.exe	78
PID 1644 wrote to memory of 1192	1644	041698926287077b77e276b4cd5fa52964b3f17693ccc4ca9311b05499f0f7fc.exe	78
PID 1644 wrote to memory of 1192	1644	041698926287077b77e276b4cd5fa52964b3f17693ccc4ca9311b05499f0f7fc.exe	78
PID 1644 wrote to memory of 4624	1644	041698926287077b77e276b4cd5fa52964b3f17693ccc4ca9311b05499f0f7fc.exe	79
PID 1644 wrote to memory of 4624	1644	041698926287077b77e276b4cd5fa52964b3f17693ccc4ca9311b05499f0f7fc.exe	79
PID 1644 wrote to memory of 4624	1644	041698926287077b77e276b4cd5fa52964b3f17693ccc4ca9311b05499f0f7fc.exe	79
PID 4624 wrote to memory of 1524	4624	nbfile1.exe	80
PID 4624 wrote to memory of 1524	4624	nbfile1.exe	80
PID 1192 wrote to memory of 4528	1192	nbfile0.exe	81
PID 1192 wrote to memory of 4528	1192	nbfile0.exe	81
PID 1192 wrote to memory of 4528	1192	nbfile0.exe	81
PID 1192 wrote to memory of 4400	1192	nbfile0.exe	82
PID 1192 wrote to memory of 4400	1192	nbfile0.exe	82
PID 1192 wrote to memory of 4400	1192	nbfile0.exe	82
PID 1524 wrote to memory of 2408	1524	IEXPLORE.EXE	83
PID 1524 wrote to memory of 2408	1524	IEXPLORE.EXE	83
PID 1524 wrote to memory of 2408	1524	IEXPLORE.EXE	83
PID 4624 wrote to memory of 2876	4624	nbfile1.exe	84
PID 4624 wrote to memory of 2876	4624	nbfile1.exe	84
PID 4624 wrote to memory of 2876	4624	nbfile1.exe	84

C:\Users\Admin\AppData\Local\Temp\041698926287077b77e276b4cd5fa52964b3f17693ccc4ca9311b05499f0f7fc.exe
"C:\Users\Admin\AppData\Local\Temp\041698926287077b77e276b4cd5fa52964b3f17693ccc4ca9311b05499f0f7fc.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1644
- 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:1192
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\newsetup.vbs"
    3⤵
    PID:4528
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\1.vbs"
    3⤵
    PID:4400
- 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:4624
- - 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:1524
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1524 CREDAT:17410 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:2408
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\nbfile1.exe
    3⤵
    PID:2876

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/4624-143-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/4624-145-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download