48254bfde00c8a7e45c71e063ee689ef3c59fb765e44abbad5d75011940593c8

Analysis

max time kernel
94s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13/09/2024, 21:06

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General

Target

gb_ems.exe
Size

341KB
MD5

73297cb9d103702a1dd20bc6e2c324ca
SHA1

a84609a02bb075e4fec338532cfd60b7f3e9ac86
SHA256

a918a9bc2ba0ea9fe444a8ed97de3552aec55554f20bb7a5b253de36aca96d6c
SHA512

ac701cb2b3d32f7c3d1d4a8676fd8d5012f84a2599d94510a0e1efe120ff870771232fc5c50a4be878dc09de60a7a2a6577871c01e0ea889296d42814d99aa8b
SSDEEP

6144:Q1db49+rEg024fpLZazEjvE/rbay19tSt4bO2BaDmeBJe59kIlbf3F8+Kw:QjkArEN249AyE/rbaMct4bO2/VVbvS+V

Score

7^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral12/memory/760-0-0x0000000000400000-0x00000000004C1000-memory.dmp	upx
behavioral12/memory/760-92-0x0000000000400000-0x00000000004C1000-memory.dmp	upx

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral12/memory/760-92-0x0000000000400000-0x00000000004C1000-memory.dmp	autoit_exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gb_ems.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ielowutil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000009f792707ad2f014a935b50bc1110c16d00000000020000000000106600000001000020000000a1f1951ed1a44705e31c77abcceb97e3c030f8a4ba6fa9bc7374aa1a7e0bf3f6000000000e8000000002000020000000542b8d8a3268d983d97d4c4098c3abadda362d7fe41c89d5a792bc80ab32569c2000000064b194a62d3b0c8279186ccc3120b18cece3f5ab32bb1b8e01a338c44b304b7340000000bb04cc12e5a2b61bf06918b4c066f0df7b95fb27f859f9253cefce90292c0665163cbfb408e21eb3552df77d2ea0e358536b6576bf5f2103176ad5a27d628ee7	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31131168"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{1A3B4758-7214-11EF-84CD-C63D5579F9B2} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31131168"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb010000009f792707ad2f014a935b50bc1110c16d00000000020000000000106600000001000020000000aee617f671aece0e51cf7d129368b98adf5b15ba51f309f97c90a5e6aaad4974000000000e8000000002000020000000ef352e3ad09472ffa492122ccf03114419d6c0a2060f2ab0aac069050fa7c379200000009c292121cc8b620a48394cbf270cea2eb7acf772ca3e9cd3076ac5caedafbd95400000003a72fec61f80557f4e95a974d7eae04a5467e325558b92f3409d4a7ecba6d0d9e808fcbeb42d30e0da615e6aba665044c95cdf91823d326c4b705aca22904ab8	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 706667f02006db01	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 708462f02006db01	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4004404154"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "4004404154"	iexplore.exe

Suspicious use of FindShellTrayWindow 8 IoCs

pid	Process
760	gb_ems.exe
760	gb_ems.exe
3124	iexplore.exe
760	gb_ems.exe
760	gb_ems.exe
760	gb_ems.exe
760	gb_ems.exe
760	gb_ems.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
760	gb_ems.exe
760	gb_ems.exe
760	gb_ems.exe
760	gb_ems.exe
760	gb_ems.exe
760	gb_ems.exe
760	gb_ems.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3124	iexplore.exe
3124	iexplore.exe
4896	IEXPLORE.EXE
4896	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3124 wrote to memory of 4896	3124	iexplore.exe	87
PID 3124 wrote to memory of 4896	3124	iexplore.exe	87
PID 3124 wrote to memory of 4896	3124	iexplore.exe	87

C:\Users\Admin\AppData\Local\Temp\gb_ems.exe
"C:\Users\Admin\AppData\Local\Temp\gb_ems.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:760

C:\Program Files (x86)\Internet Explorer\ielowutil.exe
"C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
1⤵
- System Location Discovery: System Language Discovery
PID:4064

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3124
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3124 CREDAT:17410 /prefetch:2
  2⤵
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:4896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/760-0-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/760-92-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download