e30ba4d07957896ae39a7c30946c0f56648be50b36654baa753a722aa449e5a8

Analysis

max time kernel
73s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
03-10-2022 11:22

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General

Target

e30ba4d07957896ae39a7c30946c0f56648be50b36654baa753a722aa449e5a8.exe
Size

581KB
MD5

6d772f1a3dfc1991d911283ee967cb31
SHA1

8fe1e316bde7ec7c4420f97d114f45ba5266d84a
SHA256

e30ba4d07957896ae39a7c30946c0f56648be50b36654baa753a722aa449e5a8
SHA512

dad6e476a8f1b4371521999e5c1286231882ef9cc0a2a099e51afa39647ab06f7791fb7b3971b53e023b6963f772e354a39a2baa6872c3a90a97a2a306085097
SSDEEP

12288:uoMDtCi7NFlZnNqZ9xGrLpZ0ZHEqtgb0UI:ufplNFgxG5eZngb0b

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4376	nbfile0.exe
3588	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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	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 2 IoCs

installer

resource	yara_rule
behavioral2/files/0x000500000001e0b6-142.dat	nsis_installer_2
behavioral2/files/0x000500000001e0b6-141.dat	nsis_installer_2

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3238391638"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 8067c9c143d8d801	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000043e2eb2e51ccf149ab640c8bdb0d790600000000020000000000106600000001000020000000c39ad3e42389fd6529f114a8db6157a3ea8cf04d5c6bf38173d296379ae596a1000000000e800000000200002000000075101a4d26708864f39b693e45689f9d033ecfdd450604b11943d90a87c88d7e200000004d72b1dd7d77e2a730eb6b422262ffc463d3f62e8957aca8b2a13865cb01d99c400000000e4fa12b397d7e81fe5b2a7143c931d4e725694815444047eebef4396bab259aad2c048b280a9d3535190c615442e4e2cddaa45e8bd98098e953b380dd7adae9	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "368193924"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{EBFF0493-4436-11ED-A0EE-CA180515AB83} = "0"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3229172631"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30988355"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000043e2eb2e51ccf149ab640c8bdb0d7906000000000200000000001066000000010000200000003c065d1a2b3b0706ee66db27223c8d790fda68c06268f655d3a10ddf89e47360000000000e80000000020000200000009f819dfef51b8546aaebecb1d095d8ad7cc30a4407f9e71d68f852552a21d08420000000fc60ed31efa824e179bc43f92ca2997b8c137d39d1554c49cb6ba0a014fb9b36400000001b9dd3a24fd6dfb473968823ff2f803d67661963c41bcff9492de119173a46a1a3fc0b18c21458cfda018332c401185deae5d56d00dfc8838fcd9e1415f8fa17	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3229172631"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30988355"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30988355"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 5098d7c143d8d801	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings	nbfile1.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2408	IEXPLORE.EXE

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4376	nbfile0.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2408	IEXPLORE.EXE

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
4376	nbfile0.exe
2408	IEXPLORE.EXE
2408	IEXPLORE.EXE
3120	IEXPLORE.EXE
3120	IEXPLORE.EXE
3120	IEXPLORE.EXE
3120	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4368 wrote to memory of 4376	4368	e30ba4d07957896ae39a7c30946c0f56648be50b36654baa753a722aa449e5a8.exe	77
PID 4368 wrote to memory of 4376	4368	e30ba4d07957896ae39a7c30946c0f56648be50b36654baa753a722aa449e5a8.exe	77
PID 4368 wrote to memory of 4376	4368	e30ba4d07957896ae39a7c30946c0f56648be50b36654baa753a722aa449e5a8.exe	77
PID 4376 wrote to memory of 2408	4376	nbfile0.exe	78
PID 4376 wrote to memory of 2408	4376	nbfile0.exe	78
PID 2408 wrote to memory of 3120	2408	IEXPLORE.EXE	80
PID 2408 wrote to memory of 3120	2408	IEXPLORE.EXE	80
PID 2408 wrote to memory of 3120	2408	IEXPLORE.EXE	80
PID 4376 wrote to memory of 2732	4376	nbfile0.exe	83
PID 4376 wrote to memory of 2732	4376	nbfile0.exe	83
PID 4376 wrote to memory of 2732	4376	nbfile0.exe	83
PID 4368 wrote to memory of 3588	4368	e30ba4d07957896ae39a7c30946c0f56648be50b36654baa753a722aa449e5a8.exe	84
PID 4368 wrote to memory of 3588	4368	e30ba4d07957896ae39a7c30946c0f56648be50b36654baa753a722aa449e5a8.exe	84
PID 4368 wrote to memory of 3588	4368	e30ba4d07957896ae39a7c30946c0f56648be50b36654baa753a722aa449e5a8.exe	84
PID 3588 wrote to memory of 636	3588	nbfile1.exe	85
PID 3588 wrote to memory of 636	3588	nbfile1.exe	85
PID 3588 wrote to memory of 636	3588	nbfile1.exe	85
PID 3588 wrote to memory of 2932	3588	nbfile1.exe	86
PID 3588 wrote to memory of 2932	3588	nbfile1.exe	86
PID 3588 wrote to memory of 2932	3588	nbfile1.exe	86

C:\Users\Admin\AppData\Local\Temp\e30ba4d07957896ae39a7c30946c0f56648be50b36654baa753a722aa449e5a8.exe
"C:\Users\Admin\AppData\Local\Temp\e30ba4d07957896ae39a7c30946c0f56648be50b36654baa753a722aa449e5a8.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4368
- 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:4376
- - 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:2408
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2408 CREDAT:17410 /prefetch:2
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:3120
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\nbfile0.exe
    3⤵
    PID:2732
- C:\Users\Admin\AppData\Local\Temp\nbfile1.exe
  C:\Users\Admin\AppData\Local\Temp\nbfile1.exe
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3588
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\newsetup.vbs"
    3⤵
    PID:636
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\1.vbs"
    3⤵
    PID:2932

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\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
afc3e2584b32e1e7c23c33e9534089a5

SHA1
ea4e2266d010c300621d2287ea60fe3e9a9ee753

SHA256
61597f5f937da250a5ed7b4b82867bebc546a5a35c0029982a003b1e9cbd2e7e

SHA512
f0e0d20b15bc390292baf0d93d982315afc466ccd2d4e48152ed65af97aed573d5b9e65b2b50925cbcd2e736955dfec4f63de5739cdb1499eb2db5dfc3cc4fe6

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
3923584d740b5bccdb1358093879bc58

SHA1
8943ec614cc20eeada9ca8626753faf719b7175b

SHA256
769a70c18a136924807784283576aebef72e39ae1a1df1f74570226706c59fff

SHA512
76f2deaa219bb31b09de361aa34bb67bddeab184c4830555241c327a3c38385f5a5f96cb047e0984683fe9df39562d3d8a97d1995f0f5f298e718dc442cf21b3

Download Submit
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\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
memory/636-143-0x0000000000000000-mapping.dmp

Download
memory/2732-138-0x0000000000000000-mapping.dmp

Download
memory/2932-144-0x0000000000000000-mapping.dmp

Download
memory/3588-140-0x0000000000000000-mapping.dmp

Download
memory/4376-132-0x0000000000000000-mapping.dmp

Download
memory/4376-139-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download
memory/4376-137-0x0000000000400000-0x000000000048A000-memory.dmp

Filesize
552KB

Download