f567c9479025df10b0f207e829bccf74af1372b36062272ca63253cac43d0759

General

Target

aa5628e9f58359exeexeexeex.exe
Size

4.1MB
MD5

aa5628e9f58359ec9b98b1fb498d04bd
SHA1

0d5e6d36c226c6f2e3e2f32f46e748d8f0454bfb
SHA256

f567c9479025df10b0f207e829bccf74af1372b36062272ca63253cac43d0759
SHA512

1f22c9184404f93525b6241a99e7d5a346069a1bc95cb06f299a727301af99fa4eeff1600d77e66be8877cab826bf6b6fbe8ca59fa434403343d92252feb1c6f
SSDEEP

98304:rbOSQfWhNbXNzDrvDajA1iALwb3PWZ+b8T4:rbOSQ+7bXNzDnajXqYN

Score

7^/10

adware stealer upx

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral1/files/0x000a000000012296-55.dat	acprotect
behavioral1/files/0x000a000000012296-60.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
2096	aa5628e9f58359exeexeexeex.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000a000000012296-55.dat	upx
behavioral1/memory/2096-58-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/files/0x000a000000012296-60.dat	upx
behavioral1/memory/2096-63-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2096-65-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2096-66-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2096-67-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2096-70-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2096-73-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2096-76-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2096-80-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2096-83-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral1/memory/2096-84-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Enumerates connected drives 3 TTPs 1 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\e:	aa5628e9f58359exeexeexeex.exe

Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{0055C089-8582-441B-A0BF-17B458C2A3A8}\NoExplorer = "1"	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{0055C089-8582-441B-A0BF-17B458C2A3A8}	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{0055C089-8582-441B-A0BF-17B458C2A3A8}\ = "IDM Helper"	aa5628e9f58359exeexeexeex.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{0055C089-8582-441B-A0BF-17B458C2A3A8}\NoExplorer = "1"	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{0055C089-8582-441B-A0BF-17B458C2A3A8}	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{0055C089-8582-441B-A0BF-17B458C2A3A8}\ = "IDM Helper"	aa5628e9f58359exeexeexeex.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	aa5628e9f58359exeexeexeex.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	aa5628e9f58359exeexeexeex.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 25 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	aa5628e9f58359exeexeexeex.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\MenuExt\Download all links with IDM\contexts = "243"	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\Low Rights\DragDrop	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\Low Rights\DragDrop\{19129CDA-AFC0-4330-99BC-C5A834F89006}\AppName = "aa5628e9f58359exeexeexeex.exe"	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\Low Rights\DragDrop\{19129CDA-AFC0-4330-99BC-C5A834F89006}	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\MenuExt\Download with IDM	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\MenuExt\Download all links with IDM	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\Low Rights\ElevationPolicy	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{E0DACC63-037F-46EE-AC02-E4C7B0FBFEB4}	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{E0DACC63-037F-46EE-AC02-E4C7B0FBFEB4}\AppName = "aa5628e9f58359exeexeexeex.exe"	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{1902485B-CE75-42C1-BA2D-57E660793D9A}	aa5628e9f58359exeexeexeex.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{1902485B-CE75-42C1-BA2D-57E660793D9A}\Policy = "3"	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\MenuExt\Download with IDM\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\IEExt.htm"	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\Low Rights	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{E0DACC63-037F-46EE-AC02-E4C7B0FBFEB4}\AppPath = "C:\\Users\\Admin\\AppData\\Local\\Temp"	aa5628e9f58359exeexeexeex.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{E0DACC63-037F-46EE-AC02-E4C7B0FBFEB4}\Policy = "3"	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{1902485B-CE75-42C1-BA2D-57E660793D9A}\AppPath = "C:\\Users\\Admin\\AppData\\Local\\Temp"	aa5628e9f58359exeexeexeex.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\Low Rights\DragDrop\{19129CDA-AFC0-4330-99BC-C5A834F89006}\Policy = "3"	aa5628e9f58359exeexeexeex.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\MenuExt\Download with IDM\contexts = "243"	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\MenuExt\Download all links with IDM\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\IEGetAll.htm"	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{1902485B-CE75-42C1-BA2D-57E660793D9A}\AppName = "IEMonitor.exe"	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\Low Rights\DragDrop\{19129CDA-AFC0-4330-99BC-C5A834F89006}\AppPath = "C:\\Users\\Admin\\AppData\\Local\\Temp"	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-719110999-4061093145-1944564496-1000\Software\Microsoft\Internet Explorer\DownloadUI = "{7D11E719-FF90-479C-B0D7-96EB43EE55D7}"	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\DownloadUI = "{7D11E719-FF90-479C-B0D7-96EB43EE55D7}"	aa5628e9f58359exeexeexeex.exe

Modifies registry class 12 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{AC746233-E9D3-49CD-862F-068F7B7CCCA4}\ = "IDMan"	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{AC746233-E9D3-49CD-862F-068F7B7CCCA4}\RunAs = "Interactive User"	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IDMan.CIDMLinkTransmitter	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IDMan.CIDMLinkTransmitter\CLSID	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AC746233-E9D3-49CD-862F-068F7B7CCCA4}	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AC746233-E9D3-49CD-862F-068F7B7CCCA4}\ = "IDMan.CIDMLinkTransmitter"	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AC746233-E9D3-49CD-862F-068F7B7CCCA4}\AppID = "{AC746233-E9D3-49CD-862F-068F7B7CCCA4}"	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{AC746233-E9D3-49CD-862F-068F7B7CCCA4}	aa5628e9f58359exeexeexeex.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{AC746233-E9D3-49CD-862F-068F7B7CCCA4}\ROTFlags = "1"	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IDMan.CIDMLinkTransmitter\CLSID\ = "{AC746233-E9D3-49CD-862F-068F7B7CCCA4}"	aa5628e9f58359exeexeexeex.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AC746233-E9D3-49CD-862F-068F7B7CCCA4}\LocalServer32	aa5628e9f58359exeexeexeex.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{AC746233-E9D3-49CD-862F-068F7B7CCCA4}\LocalServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\aa5628e9f58359exeexeexeex.exe"	aa5628e9f58359exeexeexeex.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2096	aa5628e9f58359exeexeexeex.exe
2096	aa5628e9f58359exeexeexeex.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2096	aa5628e9f58359exeexeexeex.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2096	aa5628e9f58359exeexeexeex.exe
Token: SeRestorePrivilege	2096	aa5628e9f58359exeexeexeex.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2096	aa5628e9f58359exeexeexeex.exe
2096	aa5628e9f58359exeexeexeex.exe
2096	aa5628e9f58359exeexeexeex.exe

C:\Users\Admin\AppData\Local\Temp\aa5628e9f58359exeexeexeex.exe
"C:\Users\Admin\AppData\Local\Temp\aa5628e9f58359exeexeexeex.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Installs/modifies Browser Helper Object
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2096

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Browser Extensions

1

T1176

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
C:\Program Files\Common Files\System\symsrv.dll.000

Filesize
175B

MD5
1130c911bf5db4b8f7cf9b6f4b457623

SHA1
48e734c4bc1a8b5399bff4954e54b268bde9d54c

SHA256
eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1

SHA512
94e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0

Download Submit
\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/2096-67-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2096-65-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2096-66-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2096-63-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2096-70-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2096-73-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2096-76-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2096-58-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2096-80-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2096-83-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/2096-84-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads