formbook | fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990

General

Target

fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990.exe
Size

260KB
MD5

27fe38ce70fca4c4526c07a42449f11e
SHA1

cd9243f1b525d08290f1bb2c428235a40e0a423e
SHA256

fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990
SHA512

d68a45d7c19e2a13da3e68b17823578e4e0cd17e949931b90d1fb211ffee3d46f90acf28e1b93b76435c6f8c5da4050150e993c8e7d6a4d5af5114702d155d80

Score

10^/10

formbook xloader be4o loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

be4o

Decoy

laboratoriobioixcha.com

tictocperushop.online

wild-oceans.com

belaruscountry.com

kicktmall.com

fitcoinweb.tech

mores.one

gogear.one

gxrcksy.com

samrcq.com

impossible-icecream.com

bravesxx.com

bookchainart.com

sleepsolutionsofmboro.com

ocbrazilbusinessclub.com

advisor76.xyz

xitaotech.com

mgsdtytifgf3414.xyz

johnson-brown.net

cr3drt.com

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 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/5056-133-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/5056-135-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/4440-144-0x0000000000FB0000-0x0000000000FDB000-memory.dmp	xloader

Executes dropped EXE 1 IoCs

Processes:

audiodgtjo.exe

pid process

3452 audiodgtjo.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
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

pid	process
3452	audiodgtjo.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

NETSTAT.EXE

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	NETSTAT.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HJPDH8LXCNYT = "C:\\Program Files (x86)\\Zwrj\\audiodgtjo.exe"	NETSTAT.EXE

Suspicious use of SetThreadContext 4 IoCs

Processes:

fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990.exevbc.exeNETSTAT.EXE

description	pid	process	target process
PID 4836 set thread context of 5056	4836	fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990.exe	vbc.exe
PID 5056 set thread context of 3116	5056	vbc.exe	Explorer.EXE
PID 5056 set thread context of 3116	5056	vbc.exe	Explorer.EXE
PID 4440 set thread context of 3116	4440	NETSTAT.EXE	Explorer.EXE

Drops file in Program Files directory 4 IoCs

Processes:

NETSTAT.EXEExplorer.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\Zwrj\audiodgtjo.exe	NETSTAT.EXE
File opened for modification	C:\Program Files (x86)\Zwrj	Explorer.EXE
File created	C:\Program Files (x86)\Zwrj\audiodgtjo.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Zwrj\audiodgtjo.exe	Explorer.EXE

Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

NETSTAT.EXE

pid process

4440 NETSTAT.EXE

pid	process
4440	NETSTAT.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

NETSTAT.EXE

description	ioc	process
Key created	\Registry\User\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 54 IoCs

Processes:

vbc.exeNETSTAT.EXE

pid	process
5056	vbc.exe
5056	vbc.exe
5056	vbc.exe
5056	vbc.exe
5056	vbc.exe
5056	vbc.exe
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE
4440	NETSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3116 Explorer.EXE
Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

vbc.exeNETSTAT.EXE

pid process

5056 vbc.exe
5056 vbc.exe
5056 vbc.exe
5056 vbc.exe
4440 NETSTAT.EXE
4440 NETSTAT.EXE
4440 NETSTAT.EXE
4440 NETSTAT.EXE

pid	process
3116	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 10 IoCs

Processes:

vbc.exeNETSTAT.EXEExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	5056	vbc.exe
Token: SeDebugPrivilege	4440	NETSTAT.EXE
Token: SeShutdownPrivilege	3116	Explorer.EXE
Token: SeCreatePagefilePrivilege	3116	Explorer.EXE
Token: SeShutdownPrivilege	3116	Explorer.EXE
Token: SeCreatePagefilePrivilege	3116	Explorer.EXE
Token: SeShutdownPrivilege	3116	Explorer.EXE
Token: SeCreatePagefilePrivilege	3116	Explorer.EXE
Token: SeShutdownPrivilege	3116	Explorer.EXE
Token: SeCreatePagefilePrivilege	3116	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990.exevbc.exeNETSTAT.EXEExplorer.EXE

description	pid	process	target process
PID 4836 wrote to memory of 5056	4836	fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990.exe	vbc.exe
PID 4836 wrote to memory of 5056	4836	fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990.exe	vbc.exe
PID 4836 wrote to memory of 5056	4836	fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990.exe	vbc.exe
PID 4836 wrote to memory of 5056	4836	fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990.exe	vbc.exe
PID 4836 wrote to memory of 5056	4836	fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990.exe	vbc.exe
PID 4836 wrote to memory of 5056	4836	fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990.exe	vbc.exe
PID 5056 wrote to memory of 4440	5056	vbc.exe	NETSTAT.EXE
PID 5056 wrote to memory of 4440	5056	vbc.exe	NETSTAT.EXE
PID 5056 wrote to memory of 4440	5056	vbc.exe	NETSTAT.EXE
PID 4440 wrote to memory of 4340	4440	NETSTAT.EXE	cmd.exe
PID 4440 wrote to memory of 4340	4440	NETSTAT.EXE	cmd.exe
PID 4440 wrote to memory of 4340	4440	NETSTAT.EXE	cmd.exe
PID 4440 wrote to memory of 2620	4440	NETSTAT.EXE	cmd.exe
PID 4440 wrote to memory of 2620	4440	NETSTAT.EXE	cmd.exe
PID 4440 wrote to memory of 2620	4440	NETSTAT.EXE	cmd.exe
PID 4440 wrote to memory of 1764	4440	NETSTAT.EXE	cmd.exe
PID 4440 wrote to memory of 1764	4440	NETSTAT.EXE	cmd.exe
PID 4440 wrote to memory of 1764	4440	NETSTAT.EXE	cmd.exe
PID 4440 wrote to memory of 3844	4440	NETSTAT.EXE	Firefox.exe
PID 4440 wrote to memory of 3844	4440	NETSTAT.EXE	Firefox.exe
PID 4440 wrote to memory of 3844	4440	NETSTAT.EXE	Firefox.exe
PID 3116 wrote to memory of 3452	3116	Explorer.EXE	audiodgtjo.exe
PID 3116 wrote to memory of 3452	3116	Explorer.EXE	audiodgtjo.exe
PID 3116 wrote to memory of 3452	3116	Explorer.EXE	audiodgtjo.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3116

C:\Users\Admin\AppData\Local\Temp\fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990.exe
"C:\Users\Admin\AppData\Local\Temp\fe55fb664c32bacbd76bf8859a8a2cd17f23d21f08a22ac9881cb0fa33935990.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4836

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5056

C:\Windows\SysWOW64\NETSTAT.EXE
"C:\Windows\SysWOW64\NETSTAT.EXE"
4⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Gathers network information
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4440

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
5⤵
PID:4340

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
5⤵
PID:2620

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
5⤵
PID:1764

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
5⤵
PID:3844

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:4976

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:2668

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:3520

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:3568

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:4092

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:3152

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:2680

C:\Program Files (x86)\Zwrj\audiodgtjo.exe
"C:\Program Files (x86)\Zwrj\audiodgtjo.exe"
2⤵
- Executes dropped EXE
PID:3452

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Command-Line Interface

1

T1059

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Zwrj\audiodgtjo.exe
Filesize
2.5MB

MD5
92ff88fa4e10ed06422fea5cf910de80

SHA1
d669d97e52ec15178c0c6de0c0be0cce69e73171

SHA256
7e29832ba9269f027c6344abd8b277072fa35a05850b4d0ed8d6665832990708

SHA512
e742a6214a69fa3f29ffc6eda7211a972ce86a7ada2bbdfe7c8a2e6a7de1100b85057af8ab2b98cee56ae84ccca16b7e10ee48f58514f022d998a2c2df4615df

Download Submit
C:\Program Files (x86)\Zwrj\audiodgtjo.exe
Filesize
2.5MB

MD5
92ff88fa4e10ed06422fea5cf910de80

SHA1
d669d97e52ec15178c0c6de0c0be0cce69e73171

SHA256
7e29832ba9269f027c6344abd8b277072fa35a05850b4d0ed8d6665832990708

SHA512
e742a6214a69fa3f29ffc6eda7211a972ce86a7ada2bbdfe7c8a2e6a7de1100b85057af8ab2b98cee56ae84ccca16b7e10ee48f58514f022d998a2c2df4615df

Download Submit
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

Download Submit
memory/1764-151-0x0000000000000000-mapping.dmp

Download
memory/2620-149-0x0000000000000000-mapping.dmp

Download
memory/3116-138-0x00000000028C0000-0x00000000029C4000-memory.dmp

Filesize
1.0MB

Download
memory/3116-141-0x00000000029D0000-0x0000000002AD3000-memory.dmp

Filesize
1.0MB

Download
memory/3116-148-0x0000000002E90000-0x0000000002F28000-memory.dmp

Filesize
608KB

Download
memory/3452-153-0x0000000000000000-mapping.dmp

Download
memory/4340-145-0x0000000000000000-mapping.dmp

Download
memory/4440-143-0x0000000000900000-0x000000000090B000-memory.dmp

Filesize
44KB

Download
memory/4440-144-0x0000000000FB0000-0x0000000000FDB000-memory.dmp

Filesize
172KB

Download
memory/4440-146-0x00000000019A0000-0x0000000001CEA000-memory.dmp

Filesize
3.3MB

Download
memory/4440-147-0x00000000017D0000-0x0000000001860000-memory.dmp

Filesize
576KB

Download
memory/4440-142-0x0000000000000000-mapping.dmp

Download
memory/4836-130-0x00000000006F0000-0x0000000000736000-memory.dmp

Filesize
280KB

Download
memory/4836-131-0x0000000005750000-0x0000000005CF4000-memory.dmp

Filesize
5.6MB

Download
memory/5056-140-0x00000000017E0000-0x00000000017F1000-memory.dmp

Filesize
68KB

Download
memory/5056-137-0x0000000001380000-0x0000000001391000-memory.dmp

Filesize
68KB

Download
memory/5056-136-0x0000000001820000-0x0000000001B6A000-memory.dmp

Filesize
3.3MB

Download
memory/5056-135-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/5056-133-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/5056-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads