b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2

Analysis

max time kernel
131s
max time network
145s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
25-11-2022 12:42

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General

Target

b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe
Size

2.0MB
MD5

d5994051b570bd568d5965c8f5673881
SHA1

d826c6e7b8d18574654064ab94341b0523a7ba0c
SHA256

b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2
SHA512

d2887f691cea37bfb29d78fbd4f634659cea5eaed27510b8c78394e26aa07072255209e4b40ee1c2f3c11dcf1f1da2990efc76823e2163f685499a6f40780b5f
SSDEEP

24576:FXfwN3sS1kuLkcityd6tecEXyywkE4qpT2baXuXozsORJzbDJJvSEdN9d:FXfTXMkVt70q9pT2bvaZrvSEd9

Score

7^/10

Malware Config

Signatures

Loads dropped DLL 5 IoCs

Processes:

b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe

pid	process
1724	b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe
1724	b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe
1724	b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe
1724	b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe
1724	b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe

Drops file in System32 directory 2 IoCs

Processes:

b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe

description	ioc	process
File created	C:\Windows\SysWOW64\WG.dll	b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe
File created	C:\Windows\SysWOW64\TAG.ime	b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 43 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\International\CpMRU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{A811DE91-6CF8-11ED-B243-5AF036119C64} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\International\CpMRU\Enable = "1"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\483eiwe.com\Total = "63"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376170050"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\483eiwe.com\NumberOfSubdomains = "1"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\Total\ = "63"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\www.483eiwe.com\ = "63"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\International\CpMRU\Size = "10"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\International\CpMRU\Factor = "20"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\International\CpMRU\InitHits = "100"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\483eiwe.com	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DOMStorage\www.483eiwe.com	IEXPLORE.EXE

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

996 iexplore.exe

pid	process
996	iexplore.exe

Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exeiexplore.exeIEXPLORE.EXE

pid	process
1724	b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe
1724	b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe
996	iexplore.exe
996	iexplore.exe
556	IEXPLORE.EXE
556	IEXPLORE.EXE
556	IEXPLORE.EXE
556	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exeiexplore.exe

description	pid	process	target process
PID 1724 wrote to memory of 996	1724	b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe	iexplore.exe
PID 1724 wrote to memory of 996	1724	b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe	iexplore.exe
PID 1724 wrote to memory of 996	1724	b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe	iexplore.exe
PID 1724 wrote to memory of 996	1724	b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe	iexplore.exe
PID 996 wrote to memory of 556	996	iexplore.exe	IEXPLORE.EXE
PID 996 wrote to memory of 556	996	iexplore.exe	IEXPLORE.EXE
PID 996 wrote to memory of 556	996	iexplore.exe	IEXPLORE.EXE
PID 996 wrote to memory of 556	996	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe
"C:\Users\Admin\AppData\Local\Temp\b931055d970a6788bb158ccdb388f09c59ad1f43b289015060d9973a98f064c2.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1724

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" http://www.cfhongxing.com/
2⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:996

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:996 CREDAT:275457 /prefetch:2
3⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:556

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\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Filesize
61KB

MD5
3dcf580a93972319e82cafbc047d34d5

SHA1
8528d2a1363e5de77dc3b1142850e51ead0f4b6b

SHA256
40810e31f1b69075c727e6d557f9614d5880112895ff6f4df1767e87ae5640d1

SHA512
98384be7218340f95dae88d1cb865f23a0b4e12855beb6e74a3752274c9b4c601e493864db777bca677a370d0a9dbffd68d94898a82014537f3a801cce839c42

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
342B

MD5
c1acea3685db728019c467c76c0610d5

SHA1
85b50c393095c5fe918dc4159ad56721d04b671a

SHA256
d86d304a9f3be1259cb7ab2ddcf48e13a7d6c25899870ebce8544dfcfa159081

SHA512
5d8903ece40767f3bed34f3bee9d97ee611ba139020eddd1fac049328e8f51a8d28a8a7b45a65e5b1dc080cf2a3308a697eb7e588e135a2e045ee26cedc41ad9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\309axvf\imagestore.dat
Filesize
5KB

MD5
3d4729917db2e52bfaf66e8bdd7db158

SHA1
dd8dd43669125412dcb3f0a96602b35da0c6eaa1

SHA256
1d009f7c56ebe5afe000fdf064c8a636e7c874d789d053369ed6516151c74375

SHA512
060e2c5445f1a9427321756100b9da50f6c2d938bcd0c72dc6c76ae6be94a44c3794bb4a5a3efb5c0c9f17edd3f19bb6efa88b97ce4c081b092f6a8df2d93ee2

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\PRMEEMGT.txt
Filesize
603B

MD5
e3191ef0184af35103327c4ea7620f52

SHA1
f31f6e9cc02cf4cb7e237db91367a6fca0dd7c4c

SHA256
48fd00e58c23f6ebfb41d4b4e2c263d71bb0683eb3b26ce6b2a37ad0cdf4b15f

SHA512
c6ea299b03e43f9c1a293647f1b6f57e430dc84ec8d65ced58a25f46e7e2f3381535a6d5e2a968b9a0b0a5040bc69f57d6ee7509b42a608b4aebe1f239089fb5

Download Submit
\Windows\SysWOW64\TAG.ime
Filesize
52KB

MD5
b60da4e2e5aceba3ce3d87ee2cd872ee

SHA1
9bbdbf1f3ce2c000a86e0473da756a4b1031db41

SHA256
b581fcc82c0462d60286a80912ab2ce5aca7d7b11c5cff0b5f74716dbb7dc453

SHA512
664d6f893484252b339ff8f413a4cf9da9b0ef82ed74b097ba86a5f00b4d9740eef6e8a5b81e8be7e82ae4009928097baf15e65a03f31c4b92e44f593ce39874

Download Submit
\Windows\SysWOW64\TAG.ime
Filesize
52KB

MD5
b60da4e2e5aceba3ce3d87ee2cd872ee

SHA1
9bbdbf1f3ce2c000a86e0473da756a4b1031db41

SHA256
b581fcc82c0462d60286a80912ab2ce5aca7d7b11c5cff0b5f74716dbb7dc453

SHA512
664d6f893484252b339ff8f413a4cf9da9b0ef82ed74b097ba86a5f00b4d9740eef6e8a5b81e8be7e82ae4009928097baf15e65a03f31c4b92e44f593ce39874

Download Submit
\Windows\SysWOW64\TAG.ime
Filesize
52KB

MD5
b60da4e2e5aceba3ce3d87ee2cd872ee

SHA1
9bbdbf1f3ce2c000a86e0473da756a4b1031db41

SHA256
b581fcc82c0462d60286a80912ab2ce5aca7d7b11c5cff0b5f74716dbb7dc453

SHA512
664d6f893484252b339ff8f413a4cf9da9b0ef82ed74b097ba86a5f00b4d9740eef6e8a5b81e8be7e82ae4009928097baf15e65a03f31c4b92e44f593ce39874

Download Submit
\Windows\SysWOW64\TAG.ime
Filesize
52KB

MD5
b60da4e2e5aceba3ce3d87ee2cd872ee

SHA1
9bbdbf1f3ce2c000a86e0473da756a4b1031db41

SHA256
b581fcc82c0462d60286a80912ab2ce5aca7d7b11c5cff0b5f74716dbb7dc453

SHA512
664d6f893484252b339ff8f413a4cf9da9b0ef82ed74b097ba86a5f00b4d9740eef6e8a5b81e8be7e82ae4009928097baf15e65a03f31c4b92e44f593ce39874

Download Submit
\Windows\SysWOW64\TAG.ime
Filesize
52KB

MD5
b60da4e2e5aceba3ce3d87ee2cd872ee

SHA1
9bbdbf1f3ce2c000a86e0473da756a4b1031db41

SHA256
b581fcc82c0462d60286a80912ab2ce5aca7d7b11c5cff0b5f74716dbb7dc453

SHA512
664d6f893484252b339ff8f413a4cf9da9b0ef82ed74b097ba86a5f00b4d9740eef6e8a5b81e8be7e82ae4009928097baf15e65a03f31c4b92e44f593ce39874

Download Submit
memory/1724-54-0x0000000074B51000-0x0000000074B53000-memory.dmp

Filesize
8KB

Download