a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c

General

Target

a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Size

82KB
MD5

fe117abcd296159121669dd08a37b674
SHA1

d9bf91d5d17ff5f403e2b46dc2f36b6bdbecf152
SHA256

a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c
SHA512

bfcbd27e4d2162efe476940de6b4bba7c732513af6d081513b27504fa40b3668d6809e4ef96034fb3d790cdc2d5fbfd5dc73a2ce1e2928eb310f7a7c93f84add
SSDEEP

1536:Gnqdu3abBGy3GEV0iuokdQX2oooD+AyxArb:GqhMPkkdQXMmb

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 2 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exeamn.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	amn.exe

Modifies visibility of file extensions in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exeamn.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	amn.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exeamn.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	amn.exe

Executes dropped EXE 1 IoCs

Processes:

amn.exe

pid process

608 amn.exe

pid	process
608	amn.exe

Loads dropped DLL 2 IoCs

Processes:

a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe

pid	process
1408	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
1408	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

amn.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	amn.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\VisualStyle = "c:\\windows\\system32\\Desktop.sysm"	amn.exe

Enumerates connected drives 3 TTPs 23 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

Processes:

amn.exe

description	ioc	process
File opened (read-only)	\??\B:	amn.exe
File opened (read-only)	\??\I:	amn.exe
File opened (read-only)	\??\J:	amn.exe
File opened (read-only)	\??\L:	amn.exe
File opened (read-only)	\??\Y:	amn.exe
File opened (read-only)	\??\H:	amn.exe
File opened (read-only)	\??\K:	amn.exe
File opened (read-only)	\??\N:	amn.exe
File opened (read-only)	\??\R:	amn.exe
File opened (read-only)	\??\T:	amn.exe
File opened (read-only)	\??\U:	amn.exe
File opened (read-only)	\??\W:	amn.exe
File opened (read-only)	\??\Z:	amn.exe
File opened (read-only)	\??\E:	amn.exe
File opened (read-only)	\??\F:	amn.exe
File opened (read-only)	\??\M:	amn.exe
File opened (read-only)	\??\O:	amn.exe
File opened (read-only)	\??\Q:	amn.exe
File opened (read-only)	\??\S:	amn.exe
File opened (read-only)	\??\V:	amn.exe
File opened (read-only)	\??\G:	amn.exe
File opened (read-only)	\??\P:	amn.exe
File opened (read-only)	\??\X:	amn.exe

Drops file in System32 directory 6 IoCs

Processes:

a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exeamn.exe

description	ioc	process
File created	\??\c:\windows\SysWOW64\maxtrox.txt	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
File created	\??\c:\windows\SysWOW64\Windows 3D.scr	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
File opened for modification	\??\c:\windows\SysWOW64\maxtrox.txt	amn.exe
File opened for modification	\??\c:\windows\SysWOW64\Windows 3D.scr	amn.exe
File created	\??\c:\windows\SysWOW64\Desktop.sysm	amn.exe
File created	\??\c:\windows\SysWOW64\CommandPrompt.Sysm	amn.exe

Drops file in Program Files directory 34 IoCs

Processes:

amn.exe

description	ioc	process
File opened for modification	\??\c:\Program Files\7-Zip\7z.exe	amn.exe
File opened for modification	\??\c:\Program Files\7-Zip\7zFM.exe	amn.exe
File opened for modification	\??\c:\Program Files\Internet Explorer\iediagcmd.exe	amn.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\updater.exe	amn.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\wmpconfig.exe	amn.exe
File opened for modification	\??\c:\Program Files\Windows Sidebar\sidebar.exe	amn.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\plugin-container.exe	amn.exe
File opened for modification	\??\c:\Program Files\7-Zip\7zG.exe	amn.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\firefox.exe	amn.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\crashreporter.exe	amn.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\default-browser-agent.exe	amn.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\minidump-analyzer.exe	amn.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\wmlaunch.exe	amn.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\wmpenc.exe	amn.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\wmpnscfg.exe	amn.exe
File opened for modification	\??\c:\Program Files\Internet Explorer\iexplore.exe	amn.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\maintenanceservice.exe	amn.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\maintenanceservice_installer.exe	amn.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\plugin-hang-ui.exe	amn.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\wmplayer.exe	amn.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\wmpshare.exe	amn.exe
File opened for modification	\??\c:\Program Files\Internet Explorer\ieinstal.exe	amn.exe
File opened for modification	\??\c:\Program Files\Windows Journal\PDIALOG.exe	amn.exe
File opened for modification	\??\c:\Program Files\Windows Mail\wab.exe	amn.exe
File opened for modification	\??\c:\Program Files\Windows Mail\wabmig.exe	amn.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\WMPDMC.exe	amn.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\WMPSideShowGadget.exe	amn.exe
File opened for modification	\??\c:\Program Files\7-Zip\Uninstall.exe	amn.exe
File opened for modification	\??\c:\Program Files\Internet Explorer\ielowutil.exe	amn.exe
File opened for modification	\??\c:\Program Files\Mozilla Firefox\pingsender.exe	amn.exe
File opened for modification	\??\c:\Program Files\Windows Defender\MpCmdRun.exe	amn.exe
File opened for modification	\??\c:\Program Files\Windows Defender\MSASCui.exe	amn.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\wmpnetwk.exe	amn.exe
File opened for modification	\??\c:\Program Files\Windows Media Player\wmprph.exe	amn.exe

Modifies registry class 36 IoCs

Processes:

a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exeamn.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\NeverShowExt	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon\ = "c:\\windows\\SysWow64\\netsetup.exe"	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile	amn.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\NeverShowExt	amn.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	amn.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command\ = "%1"	amn.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\ = "System Mechanic"	amn.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon	amn.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command\ = "%1"	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\ = "System Mechanic"	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm	amn.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\ = "Microsoft System Direct"	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\NeverShowExt	amn.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon\ = "c:\\windows\\SysWow64\\rasphone.exe"	amn.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command	amn.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command\ = "%1"	amn.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\NeverShowExt	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\ = "Microsoft System Direct"	amn.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\DefaultIcon\ = "c:\\windows\\SysWow64\\netsetup.exe"	amn.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.sysm\Shell\Open\Command\ = "%1"	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd	amn.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell\Open\Command	amn.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\NeverShowExt	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon\ = "c:\\windows\\SysWow64\\rasphone.exe"	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\Shell	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.Msd\DefaultIcon	amn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exeamn.exe

pid process

1408 a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
608 amn.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe

description	pid	process	target process
PID 1408 wrote to memory of 608	1408	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe	amn.exe
PID 1408 wrote to memory of 608	1408	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe	amn.exe
PID 1408 wrote to memory of 608	1408	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe	amn.exe
PID 1408 wrote to memory of 608	1408	a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe	amn.exe

C:\Users\Admin\AppData\Local\Temp\a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe
"C:\Users\Admin\AppData\Local\Temp\a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c.exe"
1⤵
- Modifies system executable filetype association
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1408

\??\c:\Documents and Settings\Admin\Application Data\Microsoft\amn.exe
"c:\Documents and Settings\Admin\Application Data\Microsoft\amn.exe" a772106f601753dbc8381e1de166462740859a0527587dfff161006b6acb294c
2⤵
- Modifies system executable filetype association
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Program Files directory
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:608

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\amn.exe

Filesize
82KB

MD5
f2dbdf3d55166ffa7cbc0f493e19d7f4

SHA1
d203bdeb57a2d287479212164f8f51d340f78fe5

SHA256
76377c6b3987c586243fc48cff30c93a3601607ca9aa6d77658af1c98e3973e2

SHA512
773e6b1f7b4eacf374fa69359433b565cec66a2a6fb87348300076a5ed1f77b94348f4bc205a80fa417eb3f7caffe9c42a63c22e755e0eb0a47ea22b38c8811a

Download Submit
\??\c:\Documents and Settings\Admin\Application Data\Microsoft\amn.exe

Filesize
82KB

MD5
f2dbdf3d55166ffa7cbc0f493e19d7f4

SHA1
d203bdeb57a2d287479212164f8f51d340f78fe5

SHA256
76377c6b3987c586243fc48cff30c93a3601607ca9aa6d77658af1c98e3973e2

SHA512
773e6b1f7b4eacf374fa69359433b565cec66a2a6fb87348300076a5ed1f77b94348f4bc205a80fa417eb3f7caffe9c42a63c22e755e0eb0a47ea22b38c8811a

Download Submit
\??\c:\windows\SysWOW64\Windows 3D.scr

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
\??\c:\windows\SysWOW64\maxtrox.txt

Filesize
8B

MD5
24865ca220aa1936cbac0a57685217c5

SHA1
37f687cafe79e91eae6cbdffbf2f7ad3975f5e83

SHA256
841e95fa333ed89085bfbab19bb658d96ed0c837d25721411233fa55c860c743

SHA512
c8d3f514c72f48fed5de9582c4252cf5466a9d32866d8df3631ba9274ed734bb95139e4909e8116a10947fc1afa1dbeb33809da6ec050e6e4eb83d5241aeb062

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\amn.exe

Filesize
82KB

MD5
f2dbdf3d55166ffa7cbc0f493e19d7f4

SHA1
d203bdeb57a2d287479212164f8f51d340f78fe5

SHA256
76377c6b3987c586243fc48cff30c93a3601607ca9aa6d77658af1c98e3973e2

SHA512
773e6b1f7b4eacf374fa69359433b565cec66a2a6fb87348300076a5ed1f77b94348f4bc205a80fa417eb3f7caffe9c42a63c22e755e0eb0a47ea22b38c8811a

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\amn.exe

Filesize
82KB

MD5
f2dbdf3d55166ffa7cbc0f493e19d7f4

SHA1
d203bdeb57a2d287479212164f8f51d340f78fe5

SHA256
76377c6b3987c586243fc48cff30c93a3601607ca9aa6d77658af1c98e3973e2

SHA512
773e6b1f7b4eacf374fa69359433b565cec66a2a6fb87348300076a5ed1f77b94348f4bc205a80fa417eb3f7caffe9c42a63c22e755e0eb0a47ea22b38c8811a

Download Submit
memory/608-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads