fasong | af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc

General

Target
af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
Size 502KB
Sample260918-e3egxswepd
SHA256 af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc
MD5 ccb98481dd231850609704bd561d1949
SHA1 b8b54e06b50f7237787fb578b201ad15de493745
SHA512 fccd569c3ddc27e67ed22b8f7e5089890513e1942698de98f4ad0ab761e041d62b3783b49f5d258e48667fccea528a284c864e82b3541ec0d53bdf7d82305761
SSDEEP 6144:UdspDeDrxkg/vrMuJIgwhEFHyOrJcX/Pgqwzm5IzkWjS4e4azExBKO1t4Kb70NqH:S8kxNhOZElO5kkWjhD4AOWDLpt
TLSH
T1ABB48E2AF7C08437D263163DCD5B9764A82ABEA03E3955463BF81D4C5F3938178262D7
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery fasong persistence upx worm

Malware Config

Signatures

Family: Fasong
Fasong is a Windows worm written in Delphi.
worm fasong

Detects Fasong 3 IoCs

resource	yara_rule
behavioral1/memory/956-0-0x0000000000400000-0x0000000000478000-memory.dmp	family_fasong
behavioral1/memory/956-4-0x0000000000400000-0x0000000000478000-memory.dmp	family_fasong
behavioral1/memory/956-17-0x0000000000400000-0x0000000000478000-memory.dmp	family_fasong

Modifies system executable filetype association 2 TTPs 2 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\System Volume Information\\EEWIB.EXE \"%1\" %*"	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\EEWIB.EXE = "C:\\System Volume Information\\EEWIB.EXE"	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe

Enumerates connected drives 3 TTPs 17 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)	\??\Q:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
File opened (read-only)	\??\R:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
File opened (read-only)	\??\U:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
File opened (read-only)	\??\E:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
File opened (read-only)	\??\I:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
File opened (read-only)	\??\H:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
File opened (read-only)	\??\K:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
File opened (read-only)	\??\N:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
File opened (read-only)	\??\P:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
File opened (read-only)	\??\T:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
File opened (read-only)	\??\V:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
File opened (read-only)	\??\L:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
File opened (read-only)	\??\M:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
File opened (read-only)	\??\O:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
File opened (read-only)	\??\S:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
File opened (read-only)	\??\G:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
File opened (read-only)	\??\J:	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/956-0-0x0000000000400000-0x0000000000478000-memory.dmp	upx
behavioral1/memory/956-4-0x0000000000400000-0x0000000000478000-memory.dmp	upx
behavioral1/memory/956-17-0x0000000000400000-0x0000000000478000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 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	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe

Modifies registry class 14 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\chm.file\shell\open	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\shell\open\command\ = "C:\\$Recycle.Bin\\SBV.EXE \"%1\""	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\regfile\shell\open\command\ = "C:\\$Recycle.Bin\\SBV.EXE \"%1\""	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\inifile\shell\open\command	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\chm.file\shell\open\command	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\chm.file\shell	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\scrfile\shell\open\command	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\inifile\shell\open\command\ = "C:\\$Recycle.Bin\\SBV.EXE %1"	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\System Volume Information\\EEWIB.EXE \"%1\" %*"	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\txtfile\shell\open\command\ = "C:\\$Recycle.Bin\\SBV.EXE %1"	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\chm.file	af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe

C:\Users\Admin\AppData\Local\Temp\af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe
"C:\Users\Admin\AppData\Local\Temp\af95180fe1bb043727ff7161fff808042c599a444d143d821a67f05edfb9d1dc.exe"
1⤵
- Modifies system executable filetype association
- Adds Run key to start application
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Modifies registry class
PID:956