cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30

Analysis

max time kernel
130s
max time network
129s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
07/11/2022, 18:56

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General

Target

cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe
Size

581KB
MD5

0b8a71bf3957cf88bf9372c9fe43d0c7
SHA1

4bb74f446c9ed5da0d84468bc0f11b77926d75b9
SHA256

cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30
SHA512

17fca020101a08826b9aa75f36e00b980eefc36591c2e4b5251f2cb7b1e84ab5462808056cc80df157d428d2f30b17394e59b4c848e653d3be0cc697cb9d6f5b
SSDEEP

12288:uoMDtCi7NFlZnNqZ9xGrLpZ0ZHEqtgb0Uw:ufplNFgxG5eZngb0z

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
964	nbfile0.exe
272	nbfile1.exe

Loads dropped DLL 7 IoCs

pid	Process
1488	cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe
1488	cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe
1488	cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe
1488	cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe
272	nbfile1.exe
272	nbfile1.exe
272	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/0x0007000000012677-64.dat	nsis_installer_2
behavioral1/files/0x0007000000012677-65.dat	nsis_installer_2
behavioral1/files/0x0007000000012677-67.dat	nsis_installer_2
behavioral1/files/0x0007000000012677-69.dat	nsis_installer_2
behavioral1/files/0x0007000000012677-70.dat	nsis_installer_2
behavioral1/files/0x0007000000012677-71.dat	nsis_installer_2
behavioral1/files/0x0007000000012677-72.dat	nsis_installer_2

Modifies Internet Explorer settings 1 TTPs 31 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\PageSetup	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\LastProcessed = b0aa3cfd7ef3d801	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{0C6ADD91-5F72-11ED-9551-6E705F4A26E5} = "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 (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	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\Toolbar	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\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\TabbedBrowsing\NewTabPage	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000e0f3d159765a7f43b6bf060b4b70c9a300000000020000000000106600000001000020000000b7a47924151176353e32e221b91e860e42307d392c0b4d3caad3b1cf52d87983000000000e80000000020000200000005876dc954da8e0d3284c1620cb9e2044f2deece587ca5fe5ce290c26fd09dca7200000008140fc6cec2f83e4f2d17c902ec7f0fc66cae919cd487306659fb71e4b3110f740000000d7c0868154d6c730985d112ed6d7e851d4dde46966dd1180174764b0bb3117f49cc1b1c10afecdeccc707da04193c52d9f077c002ee5752d98a81482b765a934	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\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	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\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
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\Toolbar\WebBrowser	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\TabbedBrowsing\NTPFirstRun = "1"	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\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 (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\InternetRegistry	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "374079815"	IEXPLORE.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	964	nbfile0.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
940	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
964	nbfile0.exe
940	IEXPLORE.EXE
940	IEXPLORE.EXE
2032	IEXPLORE.EXE
2032	IEXPLORE.EXE
2032	IEXPLORE.EXE
2032	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 964	1488	cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe	28
PID 1488 wrote to memory of 964	1488	cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe	28
PID 1488 wrote to memory of 964	1488	cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe	28
PID 1488 wrote to memory of 964	1488	cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe	28
PID 964 wrote to memory of 940	964	nbfile0.exe	29
PID 964 wrote to memory of 940	964	nbfile0.exe	29
PID 964 wrote to memory of 940	964	nbfile0.exe	29
PID 964 wrote to memory of 940	964	nbfile0.exe	29
PID 940 wrote to memory of 2032	940	IEXPLORE.EXE	31
PID 940 wrote to memory of 2032	940	IEXPLORE.EXE	31
PID 940 wrote to memory of 2032	940	IEXPLORE.EXE	31
PID 940 wrote to memory of 2032	940	IEXPLORE.EXE	31
PID 964 wrote to memory of 1540	964	nbfile0.exe	32
PID 964 wrote to memory of 1540	964	nbfile0.exe	32
PID 964 wrote to memory of 1540	964	nbfile0.exe	32
PID 964 wrote to memory of 1540	964	nbfile0.exe	32
PID 1488 wrote to memory of 272	1488	cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe	33
PID 1488 wrote to memory of 272	1488	cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe	33
PID 1488 wrote to memory of 272	1488	cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe	33
PID 1488 wrote to memory of 272	1488	cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe	33
PID 1488 wrote to memory of 272	1488	cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe	33
PID 1488 wrote to memory of 272	1488	cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe	33
PID 1488 wrote to memory of 272	1488	cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe	33
PID 272 wrote to memory of 1228	272	nbfile1.exe	34
PID 272 wrote to memory of 1228	272	nbfile1.exe	34
PID 272 wrote to memory of 1228	272	nbfile1.exe	34
PID 272 wrote to memory of 1228	272	nbfile1.exe	34
PID 272 wrote to memory of 1228	272	nbfile1.exe	34
PID 272 wrote to memory of 1228	272	nbfile1.exe	34
PID 272 wrote to memory of 1228	272	nbfile1.exe	34
PID 272 wrote to memory of 1284	272	nbfile1.exe	35
PID 272 wrote to memory of 1284	272	nbfile1.exe	35
PID 272 wrote to memory of 1284	272	nbfile1.exe	35
PID 272 wrote to memory of 1284	272	nbfile1.exe	35
PID 272 wrote to memory of 1284	272	nbfile1.exe	35
PID 272 wrote to memory of 1284	272	nbfile1.exe	35
PID 272 wrote to memory of 1284	272	nbfile1.exe	35

C:\Users\Admin\AppData\Local\Temp\cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe
"C:\Users\Admin\AppData\Local\Temp\cf0887b13270a97c3566cc178f41d01f839de0930680a428b7fbb642f4dbdd30.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1488
- 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:964
- - 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:940
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:940 CREDAT:275457 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:2032
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\nbfile0.exe
    3⤵
    PID:1540
- 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:272
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\newsetup.vbs"
    3⤵
    PID:1228
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\1.vbs"
    3⤵
    PID:1284

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/272-68-0x0000000074AB1000-0x0000000074AB3000-memory.dmp

Filesize
8KB

Download
memory/964-63-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/964-59-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

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memory/1488-58-0x0000000000220000-0x00000000002AA000-memory.dmp

Filesize
552KB

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