formbook | 0937b647422cc2dbb161dfb308bfd1601950cb99c1a87434a1b940d3a1483f57

General

Target

INV.00174439.js
Size

340KB
MD5

b35b0fff8b166a500cb785c6b823ad46
SHA1

a585854028426f8f48d2e654790ef33abf8f1251
SHA256

0937b647422cc2dbb161dfb308bfd1601950cb99c1a87434a1b940d3a1483f57
SHA512

414640fd2d1f0dc6ecafa71e33816351988ff432148836f0df9332744cacca25081ce615edbff8405114b94371b462fe9f7eacdc94120b3b5e01c1d813ad09aa

Score

10^/10

formbook xloader vs8g loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.9

Campaign

vs8g

Decoy

xEVEsySadSMf8UUC

H8ZbYtGKWPCfp91+uS3TFo/F7tYacwDqHw==

L/St5UjIhTMzEHsb

8h8tDvq0nl8JCWoagxa0MVyvnA==

7bml44z9jZsZx8Co2T8=

EwH88ZtcOu8ehs2P2o6wv78FEe4+xRQ=

bTn3LpE1HfpPAXI=

nYxT+9GLhS1d3zzGJuTDlgpT

HxonIwh8TesenMCo2T8=

Ki83MiehhC9e1i7YQ/Wd32JsGcun

wHcUByFRMuEGh8Co2T8=

86tqpg/Jy60eFmMRPefDlgpT

grSUYa5yahUf8UUC

HVviVsk7Cb6Elc571pnSWCJ93G17PkiI

6LJ1qBPUtGNIl8Co2T8=

AYuWD33xt44VxsCo2T8=

/smXvLMh868VzQqs99/DlgpT

1kEMNVtaMw6KmN+YANYm+kA=

daarti3nbFVKnsCo2T8=

0EJM6cFFHvawA2U=

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 6 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\bin.exe	xloader
C:\Users\Admin\AppData\Local\Temp\bin.exe	xloader
behavioral1/memory/1732-66-0x0000000000080000-0x00000000000AC000-memory.dmp	xloader
behavioral1/memory/1732-70-0x0000000000080000-0x00000000000AC000-memory.dmp	xloader
C:\Program Files (x86)\Jqhll54i\helpolkdmb-.exe	xloader
C:\Program Files (x86)\Jqhll54i\helpolkdmb-.exe	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

netsh.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	netsh.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\JRKTND2H9BE = "C:\\Program Files (x86)\\Jqhll54i\\helpolkdmb-.exe"	netsh.exe

Executes dropped EXE 2 IoCs

Processes:

bin.exehelpolkdmb-.exe

pid process

1228 bin.exe
1924 helpolkdmb-.exe
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

bin.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Control Panel\International\Geo\Nation bin.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Control Panel\International\Geo\Nation	bin.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

bin.exenetsh.exe

description	pid	process	target process
PID 1228 set thread context of 1312	1228	bin.exe	Explorer.EXE
PID 1732 set thread context of 1312	1732	netsh.exe	Explorer.EXE

Drops file in Program Files directory 2 IoCs

Processes:

netsh.exeExplorer.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\Jqhll54i\helpolkdmb-.exe	netsh.exe
File created	C:\Program Files (x86)\Jqhll54i\helpolkdmb-.exe	Explorer.EXE

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

netsh.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-790309383-526510583-3802439154-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	netsh.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

bin.exenetsh.exehelpolkdmb-.exe

pid	process
1228	bin.exe
1228	bin.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe
1924	helpolkdmb-.exe
1732	netsh.exe
1732	netsh.exe
1732	netsh.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

bin.exenetsh.exe

pid process

1228 bin.exe
1228 bin.exe
1228 bin.exe
1732 netsh.exe
1732 netsh.exe
1732 netsh.exe
1732 netsh.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

bin.exenetsh.exehelpolkdmb-.exe

description pid process

Token: SeDebugPrivilege 1228 bin.exe
Token: SeDebugPrivilege 1732 netsh.exe
Token: SeDebugPrivilege 1924 helpolkdmb-.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1312 Explorer.EXE
1312 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1312 Explorer.EXE
1312 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1228	bin.exe
Token: SeDebugPrivilege	1732	netsh.exe
Token: SeDebugPrivilege	1924	helpolkdmb-.exe

pid	process
1312	Explorer.EXE
1312	Explorer.EXE

pid	process
1312	Explorer.EXE
1312	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

wscript.exeExplorer.EXEnetsh.exe

description	pid	process	target process
PID 848 wrote to memory of 1944	848	wscript.exe	wscript.exe
PID 848 wrote to memory of 1944	848	wscript.exe	wscript.exe
PID 848 wrote to memory of 1944	848	wscript.exe	wscript.exe
PID 848 wrote to memory of 1228	848	wscript.exe	bin.exe
PID 848 wrote to memory of 1228	848	wscript.exe	bin.exe
PID 848 wrote to memory of 1228	848	wscript.exe	bin.exe
PID 848 wrote to memory of 1228	848	wscript.exe	bin.exe
PID 1312 wrote to memory of 1732	1312	Explorer.EXE	netsh.exe
PID 1312 wrote to memory of 1732	1312	Explorer.EXE	netsh.exe
PID 1312 wrote to memory of 1732	1312	Explorer.EXE	netsh.exe
PID 1312 wrote to memory of 1732	1312	Explorer.EXE	netsh.exe
PID 1732 wrote to memory of 980	1732	netsh.exe	cmd.exe
PID 1732 wrote to memory of 980	1732	netsh.exe	cmd.exe
PID 1732 wrote to memory of 980	1732	netsh.exe	cmd.exe
PID 1732 wrote to memory of 980	1732	netsh.exe	cmd.exe
PID 1732 wrote to memory of 1364	1732	netsh.exe	Firefox.exe
PID 1732 wrote to memory of 1364	1732	netsh.exe	Firefox.exe
PID 1732 wrote to memory of 1364	1732	netsh.exe	Firefox.exe
PID 1732 wrote to memory of 1364	1732	netsh.exe	Firefox.exe
PID 1732 wrote to memory of 1364	1732	netsh.exe	Firefox.exe
PID 1312 wrote to memory of 1924	1312	Explorer.EXE	helpolkdmb-.exe
PID 1312 wrote to memory of 1924	1312	Explorer.EXE	helpolkdmb-.exe
PID 1312 wrote to memory of 1924	1312	Explorer.EXE	helpolkdmb-.exe
PID 1312 wrote to memory of 1924	1312	Explorer.EXE	helpolkdmb-.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1312

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\INV.00174439.js
2⤵
- Suspicious use of WriteProcessMemory
PID:848

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\lIwfFeLwUW.js"
3⤵
PID:1944

C:\Users\Admin\AppData\Local\Temp\bin.exe
"C:\Users\Admin\AppData\Local\Temp\bin.exe"
3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1228

C:\Windows\SysWOW64\netsh.exe
"C:\Windows\SysWOW64\netsh.exe"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1732

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\bin.exe"
3⤵
PID:980

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1364

C:\Program Files (x86)\Jqhll54i\helpolkdmb-.exe
"C:\Program Files (x86)\Jqhll54i\helpolkdmb-.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1924

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Program Files (x86)\Jqhll54i\helpolkdmb-.exe
Filesize
174KB

MD5
3ae87cd93196b3f86a2e1cfa3e6c9133

SHA1
64b444869181c8893d695072239bc48681ea10cd

SHA256
0a1b761095e129d76033c7bde535ca8f0517b4ddaaeda3981b5d8f998f8cf407

SHA512
1e1490502069ff5328939cc30a8e1aa74089e9cf918a27c0ce831c877035fe578811fcb970859c88437724c65383e86f055eedad4c14e3699d4270d280b865e8

Download Submit
C:\Program Files (x86)\Jqhll54i\helpolkdmb-.exe
Filesize
174KB

MD5
3ae87cd93196b3f86a2e1cfa3e6c9133

SHA1
64b444869181c8893d695072239bc48681ea10cd

SHA256
0a1b761095e129d76033c7bde535ca8f0517b4ddaaeda3981b5d8f998f8cf407

SHA512
1e1490502069ff5328939cc30a8e1aa74089e9cf918a27c0ce831c877035fe578811fcb970859c88437724c65383e86f055eedad4c14e3699d4270d280b865e8

Download Submit
C:\Users\Admin\AppData\Local\Temp\bin.exe
Filesize
174KB

MD5
3ae87cd93196b3f86a2e1cfa3e6c9133

SHA1
64b444869181c8893d695072239bc48681ea10cd

SHA256
0a1b761095e129d76033c7bde535ca8f0517b4ddaaeda3981b5d8f998f8cf407

SHA512
1e1490502069ff5328939cc30a8e1aa74089e9cf918a27c0ce831c877035fe578811fcb970859c88437724c65383e86f055eedad4c14e3699d4270d280b865e8

Download Submit
C:\Users\Admin\AppData\Local\Temp\bin.exe
Filesize
174KB

MD5
3ae87cd93196b3f86a2e1cfa3e6c9133

SHA1
64b444869181c8893d695072239bc48681ea10cd

SHA256
0a1b761095e129d76033c7bde535ca8f0517b4ddaaeda3981b5d8f998f8cf407

SHA512
1e1490502069ff5328939cc30a8e1aa74089e9cf918a27c0ce831c877035fe578811fcb970859c88437724c65383e86f055eedad4c14e3699d4270d280b865e8

Download Submit
C:\Users\Admin\AppData\Roaming\lIwfFeLwUW.js
Filesize
8KB

MD5
9ecd8fc3493289aee91891fbdb974e41

SHA1
b6b20678f1de52a12e95d2ade3475e70616819c1

SHA256
41977a1ae6de15f7bf162292942069ab78b22f3da9f27d4871e476237f867c1c

SHA512
29f707eb5b11d8365c5c6c0bfb16b60250c5a2013adaa35e80f345e241bc03da473509ae1687a799bb8e19044a125a542725ec3077ca5955a19fff1f63186da7

Download Submit
memory/848-54-0x000007FEFC081000-0x000007FEFC083000-memory.dmp

Filesize
8KB

Download
memory/980-64-0x0000000000000000-mapping.dmp

Download
memory/1228-59-0x0000000000880000-0x0000000000B83000-memory.dmp

Filesize
3.0MB

Download
memory/1228-60-0x00000000001B0000-0x00000000001C1000-memory.dmp

Filesize
68KB

Download
memory/1228-57-0x0000000000000000-mapping.dmp

Download
memory/1312-69-0x0000000006C10000-0x0000000006D0F000-memory.dmp

Filesize
1020KB

Download
memory/1312-61-0x00000000069C0000-0x0000000006B22000-memory.dmp

Filesize
1.4MB

Download
memory/1312-71-0x0000000006C10000-0x0000000006D0F000-memory.dmp

Filesize
1020KB

Download
memory/1732-65-0x0000000001240000-0x000000000125B000-memory.dmp

Filesize
108KB

Download
memory/1732-68-0x0000000000960000-0x00000000009F0000-memory.dmp

Filesize
576KB

Download
memory/1732-67-0x0000000000C30000-0x0000000000F33000-memory.dmp

Filesize
3.0MB

Download
memory/1732-70-0x0000000000080000-0x00000000000AC000-memory.dmp

Filesize
176KB

Download
memory/1732-66-0x0000000000080000-0x00000000000AC000-memory.dmp

Filesize
176KB

Download
memory/1732-72-0x0000000075951000-0x0000000075953000-memory.dmp

Filesize
8KB

Download
memory/1732-62-0x0000000000000000-mapping.dmp

Download
memory/1924-73-0x0000000000000000-mapping.dmp

Download
memory/1924-75-0x0000000000900000-0x0000000000C03000-memory.dmp

Filesize
3.0MB

Download
memory/1944-55-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads