fasong | df73a89d3fd46d08d049e41e2050c30668515330038afa1597370e54a8d3ce7f

Analysis

max time kernel
148s
max time network
112s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
18/09/2026, 11:43

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General

Target
jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
Size 229KB
Sample260918-nvmb8sthph
SHA256 df73a89d3fd46d08d049e41e2050c30668515330038afa1597370e54a8d3ce7f
MD5 f6b8980c942da6e468df284b4b8824f3
SHA1 911a9f05ad01badc8982f49dbce06934d77d611a
SHA512 46d96995a9c7e29afa63a5ea51a1c2dc69a563793c2788c582e27dd9b3b1f3e1abe9fe22dddaead8459e2f9092ef10e280ecce4d23f5ad8d73599b9bab4cfd24
SSDEEP 6144:tS9Sb15YmbdnpHQGHpU0GP+Bu+wLi109CzUZUwW6c5G2p0riWUY41bwrJRxxRYph:tSA/JpfHpzz
TLSH
T12E34DF52B3F89A44F6F33B385D7286A44E76FCA2ED34C65D2264780E2C71A5488B0737
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery fasong upx worm

Malware Config

Signatures

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

Detects Fasong 4 IoCs

resource	yara_rule
behavioral2/memory/1436-2-0x0000000000400000-0x0000000000490000-memory.dmp	family_fasong
behavioral2/memory/5052-19-0x0000000000400000-0x0000000000490000-memory.dmp	family_fasong
behavioral2/memory/5052-21-0x0000000000400000-0x0000000000490000-memory.dmp	family_fasong
behavioral2/memory/1436-23-0x0000000000400000-0x0000000000490000-memory.dmp	family_fasong

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x000e00000001c4ee-8.dat	acprotect

Executes dropped EXE 1 IoCs

pid	Process
5052	svchost.exe

Loads dropped DLL 2 IoCs

pid	Process
1436	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
1436	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe

Enumerates connected drives 3 TTPs 34 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)	\??\I:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\H:	svchost.exe
File opened (read-only)	\??\G:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\O:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\D:	svchost.exe
File opened (read-only)	\??\M:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\V:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\I:	svchost.exe
File opened (read-only)	\??\J:	svchost.exe
File opened (read-only)	\??\S:	svchost.exe
File opened (read-only)	\??\U:	svchost.exe
File opened (read-only)	\??\P:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\J:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\L:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\M:	svchost.exe
File opened (read-only)	\??\Q:	svchost.exe
File opened (read-only)	\??\R:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\U:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\L:	svchost.exe
File opened (read-only)	\??\T:	svchost.exe
File opened (read-only)	\??\K:	svchost.exe
File opened (read-only)	\??\Q:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\D:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\H:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\K:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\T:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\G:	svchost.exe
File opened (read-only)	\??\R:	svchost.exe
File opened (read-only)	\??\S:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\N:	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened (read-only)	\??\N:	svchost.exe
File opened (read-only)	\??\O:	svchost.exe
File opened (read-only)	\??\P:	svchost.exe
File opened (read-only)	\??\V:	svchost.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\EEDJBR.dll	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File opened for modification	C:\Windows\SysWOW64\EEDJBR.dll	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
File created	C:\Windows\SysWOW64\FAFD.dll	svchost.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1436-0-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1436-2-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/files/0x000e00000001c4ee-8.dat	upx
behavioral2/memory/1436-14-0x0000000002410000-0x0000000002430000-memory.dmp	upx
behavioral2/memory/1436-13-0x0000000002410000-0x0000000002430000-memory.dmp	upx
behavioral2/files/0x000100000000002d-16.dat	upx
behavioral2/memory/5052-19-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/5052-21-0x0000000000400000-0x0000000000490000-memory.dmp	upx
behavioral2/memory/1436-23-0x0000000000400000-0x0000000000490000-memory.dmp	upx

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\svchost.exe	svchost.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Modifies registry class 15 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A717F661-41D3-11D8-9BD7-962A4BD65539}\ = "Webhook1001PV"	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WPWorkFilePV\EFile = "054037160053039186066074050032081127216068148219154077101077110095132107084166028090054092185030064058097000007073224133"	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A717F661-41D3-11D8-9BD7-962A4BD65539}\InprocServer32\ = "C:\\Windows\\SysWow64\\EEDJBR.dll"	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A717F661-41D3-11D8-9BD7-962A4BD65539}\ProgID\ = "EEDJBR.ExecuteHookWebPV"	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WPWorkFilePV	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\EEDJBR.ExecuteHookWebPV\Clsid	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\EEDJBR.ExecuteHookWebPV\Clsid\ = "{A717F661-41D3-11D8-9BD7-962A4BD65539}"	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WPWorkFilePV\DFile = "055038169053038188066126050035094088119065132209187225237245174195090036074102089185107129078190203255026007237044056171045010146"	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WPWorkFilePV	svchost.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A717F661-41D3-11D8-9BD7-962A4BD65539}\InprocServer32	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A717F661-41D3-11D8-9BD7-962A4BD65539}\InprocServer32\ThreadingModel = "Apartment"	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\EEDJBR.ExecuteHookWebPV	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\EEDJBR.ExecuteHookWebPV\ = "Webhook1001PV"	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A717F661-41D3-11D8-9BD7-962A4BD65539}\ProgID	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{A717F661-41D3-11D8-9BD7-962A4BD65539}	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1436	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
1436	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
5052	svchost.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 1436 wrote to memory of 5052	1436	jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe	87

C:\Users\Admin\AppData\Local\Temp\jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118__f6b8980c942da6e468df284b4b8824f3.exe"
1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1436
- F:\$RECYCLE.BIN\svchost.exe
  F:\$RECYCLE.BIN\svchost.exe
  2⤵
  - Executes dropped EXE
  - Enumerates connected drives
  - Drops file in System32 directory
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:5052

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

EEDJBR.dll

Path C:\Windows\SysWOW64\EEDJBR.dll
Size 276KB
SHA256 6c52e3ca11c60f7ee2b149a7ba84279682785809e0827f2d0d54b86e3d7b1c48
MD5 1b7e447a48b6cc50f446404712927eca
SHA1 ba9718c7d23a35df36ce345c46e1105e614a8403
SHA512 40ced4b949cdde9148ff48eab23ddf1e9d47949c1f4c8b52e4aec210681dfd492aa51acd36856a41da1c1063f758c65df91e89a7472569dd2876eda7c2ec90d9
SSDEEP 6144:ra8z7NS9Sb15YmbdnpHQGHpU0GP+Bu+wLi109CzUZUwW6c5G2p0riWUY41bwrJRO:FzxSA/JpfHpzz
TLSH
T19A54D052B3F89A44F6F33B385E7287940E76BCA2AD34C64E2664B50E1C71A54C8B0777
MD5 SHA1 SHA512 SSDEEP TLSH

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svchost.exe

Path F:\$RECYCLE.BIN\svchost.exe
Size 229KB
SHA256 ba594ee569343936510c63c3d46ea8e70f9cce4558a38f0cc24fd0dbd6f8a174
MD5 657ecd5b3c2e5b120f4c38644a6291d3
SHA1 7da54fb81cbb1ab9671000322cfe34ffea2ade85
SHA512 a6e4a173660bfc6c39f3621e6339e13d8407cf2a6c2f81eb70677cb9c20a9467ed1ab3c72e0dc46c6bd6ab805d3e327b6a6e179eb4e6261a1fb3f0fbdc359fc7
SSDEEP 6144:tS9Sb15YmbdnpHQGHpU0GP+Bu+wLi109CzUZUwW6c5G2p0riWUY41bwrJRxxRYph:tSA/JpfHpzz
TLSH
T16E34DF52B3F89A44F6F33B385D7286A44E76FCA2ED34C65D2264780E2C71A5488B0737
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1436-0-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/1436-1-0x000000000048F000-0x0000000000490000-memory.dmp

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memory/1436-2-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/1436-14-0x0000000002410000-0x0000000002430000-memory.dmp

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memory/1436-13-0x0000000002410000-0x0000000002430000-memory.dmp

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memory/1436-23-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/5052-19-0x0000000000400000-0x0000000000490000-memory.dmp

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memory/5052-21-0x0000000000400000-0x0000000000490000-memory.dmp

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