hxxps://pastebin[.]com/raw/CBahgwyj

Analysis

max time kernel
143s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20230621-en
resource tags

arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
submitted
30/06/2023, 12:44

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General

Target

https://pastebin.com/raw/CBahgwyj

Score

6^/10

Malware Config

Signatures

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{E3B5F223-D350-433B-B906-142B637B5082}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{BA58E26D-F845-479A-A5A6-E8DD1194E19A}.catalogItem	svchost.exe

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 9044b86f54abd901	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000003baaf03b17dd442a33931e427c360420000000002000000000010660000000100002000000078ea68ef4b54a348d299e983ba0370fe511b45a9f27d8b168a888ccae3407664000000000e8000000002000020000000e580c9311a3717d7856d4ee1f5da5dce9992452420979ffc3445e4fc51d33f3c200000009b44049552f64576cd4f7f6419ed4a72d407e8146f8e82b33cf88f42d57421724000000050c118b755a810490010974a6f1f74c06063b477b361302546e25889e97c7f56216cc8ea16e067f3ea92abd27f9a0c77f5b15583d0eaf2e532251042c1f5c892	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1837790726"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000003baaf03b17dd442a33931e427c36042000000000200000000001066000000010000200000003a83d379b0afe25aaddb22f62eceb6b8ec5157b0ccee573c2154fb04e841935d000000000e80000000020000200000003564b1624ce7dc96879e1a80709a67202dd1154d4ba6e35eb22a62833183db4e200000009a39192323851bbcd75cdea7d9cf5c75085096f6fc94622c0a669ff447a84ebc40000000607b847bf3d15b767647e5f0e4a0820a205b93741a0f734fa04d243179d6e3362e0845e56b9c7243b73c0716a658a748dc01035e78e066839a5a6242994786e2	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 20aab27054abd901	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\IESettingSync\SlowSettingTypesChanged = "2"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\IESettingSync	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{98F8643B-1747-11EE-910D-7295A88F71B6} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31042388"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31042388"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "394292558"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3259792829-1422303781-2047321929-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1837790726"	iexplore.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2464	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2464	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2464	iexplore.exe
2464	iexplore.exe
1444	IEXPLORE.EXE
1444	IEXPLORE.EXE
1444	IEXPLORE.EXE
1444	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 1444	2464	iexplore.exe	83
PID 2464 wrote to memory of 1444	2464	iexplore.exe	83
PID 2464 wrote to memory of 1444	2464	iexplore.exe	83

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" https://pastebin.com/raw/CBahgwyj
1⤵
- Modifies Internet Explorer settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2464 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:1444

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
PID:376

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Web Service

T1102

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\i6gepyi\imagestore.dat

Filesize
428B

MD5
d5aeffc5ee2a86cfa25b1642a069cc48

SHA1
1d6040f674bc66669c62e53e44faf57e35b5aed4

SHA256
a366b5b272988475875e5f588b9cdbf80594af621c27e339d6047e9f877f1ee6

SHA512
d12f86c2e9de3a657d385e055c946f34f84be3f27772da48beda60179afd10f6072536054980ff74d2d4b7924ec29489609e5b810181a0bd0ece76d388ea2530

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DNCPX4JR\favicon[1].ico

Filesize
318B

MD5
de86a6f000f8f84e20bc7eb2c7d320e3

SHA1
35af87deef9e6c081d834d08963ada2530dc0618

SHA256
6a5e064af00286681a3ae734e5407a2ea883955d875c5490e597d1ddb8eda021

SHA512
e06a8f3101e1cad5bb965a8543fff987a2e22f8ed1fd9aba00c86bb937118f75b280bcfb1c6649f5ec96d6182582aa64a346e7dd7637c0f73a26f79b3a3aee96

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DNCPX4JR\favicon[1].ico

Filesize
318B

MD5
de86a6f000f8f84e20bc7eb2c7d320e3

SHA1
35af87deef9e6c081d834d08963ada2530dc0618

SHA256
6a5e064af00286681a3ae734e5407a2ea883955d875c5490e597d1ddb8eda021

SHA512
e06a8f3101e1cad5bb965a8543fff987a2e22f8ed1fd9aba00c86bb937118f75b280bcfb1c6649f5ec96d6182582aa64a346e7dd7637c0f73a26f79b3a3aee96

Download Submit