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
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\bin.exe	xloader
C:\Users\Admin\AppData\Local\Temp\bin.exe	xloader
behavioral2/memory/4724-141-0x00000000006C0000-0x00000000006EC000-memory.dmp	xloader
behavioral2/memory/4724-145-0x00000000006C0000-0x00000000006EC000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

control.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	control.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\ZTD0XPFPZDN = "C:\\Program Files (x86)\\E9rad\\wzdiv1hxz.exe"	control.exe

Executes dropped EXE 1 IoCs

Processes:

bin.exe

pid process

2036 bin.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

wscript.exebin.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	wscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	bin.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 2 IoCs

Processes:

bin.execontrol.exe

description	pid	process	target process
PID 2036 set thread context of 2952	2036	bin.exe	Explorer.EXE
PID 4724 set thread context of 2952	4724	control.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

control.exe

description ioc process

File opened for modification C:\Program Files (x86)\E9rad\wzdiv1hxz.exe control.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Program Files (x86)\E9rad\wzdiv1hxz.exe	control.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

control.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	control.exe

Suspicious behavior: EnumeratesProcesses 58 IoCs

Processes:

bin.execontrol.exe

pid	process
2036	bin.exe
2036	bin.exe
2036	bin.exe
2036	bin.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe
4724	control.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2952 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

bin.execontrol.exe

pid process

2036 bin.exe
2036 bin.exe
2036 bin.exe
4724 control.exe
4724 control.exe
4724 control.exe
4724 control.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

bin.execontrol.exe

description pid process

Token: SeDebugPrivilege 2036 bin.exe
Token: SeDebugPrivilege 4724 control.exe

pid	process
2952	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2036	bin.exe
Token: SeDebugPrivilege	4724	control.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

wscript.exeExplorer.EXEcontrol.exe

description	pid	process	target process
PID 4680 wrote to memory of 1956	4680	wscript.exe	wscript.exe
PID 4680 wrote to memory of 1956	4680	wscript.exe	wscript.exe
PID 4680 wrote to memory of 2036	4680	wscript.exe	bin.exe
PID 4680 wrote to memory of 2036	4680	wscript.exe	bin.exe
PID 4680 wrote to memory of 2036	4680	wscript.exe	bin.exe
PID 2952 wrote to memory of 4724	2952	Explorer.EXE	control.exe
PID 2952 wrote to memory of 4724	2952	Explorer.EXE	control.exe
PID 2952 wrote to memory of 4724	2952	Explorer.EXE	control.exe
PID 4724 wrote to memory of 760	4724	control.exe	cmd.exe
PID 4724 wrote to memory of 760	4724	control.exe	cmd.exe
PID 4724 wrote to memory of 760	4724	control.exe	cmd.exe
PID 4724 wrote to memory of 1728	4724	control.exe	cmd.exe
PID 4724 wrote to memory of 1728	4724	control.exe	cmd.exe
PID 4724 wrote to memory of 1728	4724	control.exe	cmd.exe
PID 4724 wrote to memory of 3180	4724	control.exe	cmd.exe
PID 4724 wrote to memory of 3180	4724	control.exe	cmd.exe
PID 4724 wrote to memory of 3180	4724	control.exe	cmd.exe
PID 4724 wrote to memory of 2936	4724	control.exe	Firefox.exe
PID 4724 wrote to memory of 2936	4724	control.exe	Firefox.exe
PID 4724 wrote to memory of 2936	4724	control.exe	Firefox.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\INV.00174439.js
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4680

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\lIwfFeLwUW.js"
2⤵
PID:1956

C:\Users\Admin\AppData\Local\Temp\bin.exe
"C:\Users\Admin\AppData\Local\Temp\bin.exe"
2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2036

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2952

C:\Windows\SysWOW64\control.exe
"C:\Windows\SysWOW64\control.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:4724

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\bin.exe"
3⤵
PID:760

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:1728

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:3180

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:2936

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

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
48KB

MD5
349e6eb110e34a08924d92f6b334801d

SHA1
bdfb289daff51890cc71697b6322aa4b35ec9169

SHA256
c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

SHA512
2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

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

MD5
3ae87cd93196b3f86a2e1cfa3e6c9133

SHA1
64b444869181c8893d695072239bc48681ea10cd

SHA256
0a1b761095e129d76033c7bde535ca8f0517b4ddaaeda3981b5d8f998f8cf407

SHA512
1e1490502069ff5328939cc30a8e1aa74089e9cf918a27c0ce831c877035fe578811fcb970859c88437724c65383e86f055eedad4c14e3699d4270d280b865e8

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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/760-139-0x0000000000000000-mapping.dmp

Download
memory/1728-147-0x0000000000000000-mapping.dmp

Download
memory/1956-130-0x0000000000000000-mapping.dmp

Download
memory/2036-135-0x0000000001560000-0x00000000018AA000-memory.dmp

Filesize
3.3MB

Download
memory/2036-136-0x0000000000D80000-0x0000000000D91000-memory.dmp

Filesize
68KB

Download
memory/2036-132-0x0000000000000000-mapping.dmp

Download
memory/2952-137-0x0000000002CA0000-0x0000000002D78000-memory.dmp

Filesize
864KB

Download
memory/2952-146-0x0000000007FD0000-0x000000000806D000-memory.dmp

Filesize
628KB

Download
memory/2952-144-0x0000000007FD0000-0x000000000806D000-memory.dmp

Filesize
628KB

Download
memory/3180-149-0x0000000000000000-mapping.dmp

Download
memory/4724-141-0x00000000006C0000-0x00000000006EC000-memory.dmp

Filesize
176KB

Download
memory/4724-145-0x00000000006C0000-0x00000000006EC000-memory.dmp

Filesize
176KB

Download
memory/4724-143-0x0000000002470000-0x0000000002500000-memory.dmp

Filesize
576KB

Download
memory/4724-142-0x00000000027E0000-0x0000000002B2A000-memory.dmp

Filesize
3.3MB

Download
memory/4724-140-0x0000000000EA0000-0x0000000000EC7000-memory.dmp

Filesize
156KB

Download
memory/4724-138-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads