formbook | 16a81a265cea156034bea5db891d480535cf697bdd8c8917fc6d994c33ddfdf0

General

Target

Shipping Document.exe
Size

550KB
MD5

01a52be812f172b91eace459ba95c6cf
SHA1

6a169e7a4871117b513852d89d5aa49b6c67e04e
SHA256

16a81a265cea156034bea5db891d480535cf697bdd8c8917fc6d994c33ddfdf0
SHA512

9a899bef688a5423042dd87d99c2d7bfa270c5c8ea3a27a09fd922f3dd07fc7d2df2b1f07b47644b57db35afc319dc8f1af936e248f83076ea717452843ebfff

Score

10^/10

formbook xloader a8hq loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

a8hq

Decoy

veteransductcleaning.com

beajtjunkies.com

houseofascofi.com

scottsdalemediator.com

atelyadesign.com

profitcase.pro

imtokenio.club

qinglingpai.com

bigsmile-meal.net

daytonlivestream.com

aspiradores10.online

ytybs120.com

hdatelier.com

bearpierce.com

yeson28ca.com

booklearner.com

m8j9.club

mmophamthinhlegend.space

hq4a7o6zb.com

sophiadaki.online

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
behavioral2/memory/2108-136-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral2/memory/2108-138-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral2/memory/2512-144-0x0000000001030000-0x000000000105B000-memory.dmp	xloader
behavioral2/memory/2512-150-0x0000000001030000-0x000000000105B000-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:

explorer.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	explorer.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\CZ2HW6FPILR8 = "C:\\Program Files (x86)\\Ak8cltx\\lfr8rsdflfx.exe"	explorer.exe

Executes dropped EXE 1 IoCs

Processes:

lfr8rsdflfx.exe

pid process

3452 lfr8rsdflfx.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

pid	process
3452	lfr8rsdflfx.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Shipping Document.exeShipping Document.exeexplorer.exe

description	pid	process	target process
PID 1032 set thread context of 2108	1032	Shipping Document.exe	Shipping Document.exe
PID 2108 set thread context of 2604	2108	Shipping Document.exe	Explorer.EXE
PID 2512 set thread context of 2604	2512	explorer.exe	Explorer.EXE

Drops file in Program Files directory 4 IoCs

Processes:

explorer.exeExplorer.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\Ak8cltx\lfr8rsdflfx.exe	explorer.exe
File opened for modification	C:\Program Files (x86)\Ak8cltx	Explorer.EXE
File created	C:\Program Files (x86)\Ak8cltx\lfr8rsdflfx.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Ak8cltx\lfr8rsdflfx.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

explorer.exe

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

Suspicious behavior: EnumeratesProcesses 48 IoCs

Processes:

Shipping Document.exeexplorer.exe

pid	process
2108	Shipping Document.exe
2108	Shipping Document.exe
2108	Shipping Document.exe
2108	Shipping Document.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2604 Explorer.EXE

pid	process
2604	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

Shipping Document.exeexplorer.exe

pid	process
2108	Shipping Document.exe
2108	Shipping Document.exe
2108	Shipping Document.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe
2512	explorer.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Shipping Document.exeexplorer.exe

description pid process

Token: SeDebugPrivilege 2108 Shipping Document.exe
Token: SeDebugPrivilege 2512 explorer.exe

description	pid	process
Token: SeDebugPrivilege	2108	Shipping Document.exe
Token: SeDebugPrivilege	2512	explorer.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

Shipping Document.exeExplorer.EXEexplorer.exe

description	pid	process	target process
PID 1032 wrote to memory of 2108	1032	Shipping Document.exe	Shipping Document.exe
PID 1032 wrote to memory of 2108	1032	Shipping Document.exe	Shipping Document.exe
PID 1032 wrote to memory of 2108	1032	Shipping Document.exe	Shipping Document.exe
PID 1032 wrote to memory of 2108	1032	Shipping Document.exe	Shipping Document.exe
PID 1032 wrote to memory of 2108	1032	Shipping Document.exe	Shipping Document.exe
PID 1032 wrote to memory of 2108	1032	Shipping Document.exe	Shipping Document.exe
PID 2604 wrote to memory of 2512	2604	Explorer.EXE	explorer.exe
PID 2604 wrote to memory of 2512	2604	Explorer.EXE	explorer.exe
PID 2604 wrote to memory of 2512	2604	Explorer.EXE	explorer.exe
PID 2512 wrote to memory of 3260	2512	explorer.exe	cmd.exe
PID 2512 wrote to memory of 3260	2512	explorer.exe	cmd.exe
PID 2512 wrote to memory of 3260	2512	explorer.exe	cmd.exe
PID 2512 wrote to memory of 436	2512	explorer.exe	cmd.exe
PID 2512 wrote to memory of 436	2512	explorer.exe	cmd.exe
PID 2512 wrote to memory of 436	2512	explorer.exe	cmd.exe
PID 2512 wrote to memory of 2868	2512	explorer.exe	cmd.exe
PID 2512 wrote to memory of 2868	2512	explorer.exe	cmd.exe
PID 2512 wrote to memory of 2868	2512	explorer.exe	cmd.exe
PID 2512 wrote to memory of 3032	2512	explorer.exe	Firefox.exe
PID 2512 wrote to memory of 3032	2512	explorer.exe	Firefox.exe
PID 2512 wrote to memory of 3032	2512	explorer.exe	Firefox.exe
PID 2604 wrote to memory of 3452	2604	Explorer.EXE	lfr8rsdflfx.exe
PID 2604 wrote to memory of 3452	2604	Explorer.EXE	lfr8rsdflfx.exe
PID 2604 wrote to memory of 3452	2604	Explorer.EXE	lfr8rsdflfx.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2604

C:\Users\Admin\AppData\Local\Temp\Shipping Document.exe
"C:\Users\Admin\AppData\Local\Temp\Shipping Document.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1032

C:\Users\Admin\AppData\Local\Temp\Shipping Document.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2108

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:3960

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:3220

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:3684

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1508

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:3368

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1940

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:2984

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:3468

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:2224

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:3944

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:3964

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:3968

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.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:2512

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Shipping Document.exe"
3⤵
PID:3260

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:436

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:2868

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:3032

C:\Program Files (x86)\Ak8cltx\lfr8rsdflfx.exe
"C:\Program Files (x86)\Ak8cltx\lfr8rsdflfx.exe"
2⤵
- Executes dropped EXE
PID:3452

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

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Program Files (x86)\Ak8cltx\lfr8rsdflfx.exe
Filesize
550KB

MD5
01a52be812f172b91eace459ba95c6cf

SHA1
6a169e7a4871117b513852d89d5aa49b6c67e04e

SHA256
16a81a265cea156034bea5db891d480535cf697bdd8c8917fc6d994c33ddfdf0

SHA512
9a899bef688a5423042dd87d99c2d7bfa270c5c8ea3a27a09fd922f3dd07fc7d2df2b1f07b47644b57db35afc319dc8f1af936e248f83076ea717452843ebfff

Download Submit
C:\Program Files (x86)\Ak8cltx\lfr8rsdflfx.exe
Filesize
550KB

MD5
01a52be812f172b91eace459ba95c6cf

SHA1
6a169e7a4871117b513852d89d5aa49b6c67e04e

SHA256
16a81a265cea156034bea5db891d480535cf697bdd8c8917fc6d994c33ddfdf0

SHA512
9a899bef688a5423042dd87d99c2d7bfa270c5c8ea3a27a09fd922f3dd07fc7d2df2b1f07b47644b57db35afc319dc8f1af936e248f83076ea717452843ebfff

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/436-152-0x0000000000000000-mapping.dmp

Download
memory/1032-131-0x0000000004F80000-0x0000000005524000-memory.dmp

Filesize
5.6MB

Download
memory/1032-132-0x0000000004A70000-0x0000000004B02000-memory.dmp

Filesize
584KB

Download
memory/1032-133-0x0000000004B10000-0x0000000004BAC000-memory.dmp

Filesize
624KB

Download
memory/1032-134-0x0000000004A40000-0x0000000004A4A000-memory.dmp

Filesize
40KB

Download
memory/1032-130-0x0000000000020000-0x00000000000B0000-memory.dmp

Filesize
576KB

Download
memory/2108-138-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2108-140-0x0000000001990000-0x00000000019A1000-memory.dmp

Filesize
68KB

Download
memory/2108-135-0x0000000000000000-mapping.dmp

Download
memory/2108-136-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2108-139-0x00000000019D0000-0x0000000001D1A000-memory.dmp

Filesize
3.3MB

Download
memory/2512-150-0x0000000001030000-0x000000000105B000-memory.dmp

Filesize
172KB

Download
memory/2512-148-0x0000000002E90000-0x0000000002F20000-memory.dmp

Filesize
576KB

Download
memory/2512-142-0x0000000000000000-mapping.dmp

Download
memory/2512-146-0x0000000003060000-0x00000000033AA000-memory.dmp

Filesize
3.3MB

Download
memory/2512-144-0x0000000001030000-0x000000000105B000-memory.dmp

Filesize
172KB

Download
memory/2512-143-0x00000000008A0000-0x0000000000CD3000-memory.dmp

Filesize
4.2MB

Download
memory/2604-147-0x0000000002890000-0x0000000002955000-memory.dmp

Filesize
788KB

Download
memory/2604-149-0x0000000002C80000-0x0000000002D56000-memory.dmp

Filesize
856KB

Download
memory/2604-151-0x0000000002C80000-0x0000000002D56000-memory.dmp

Filesize
856KB

Download
memory/2604-141-0x0000000002890000-0x0000000002955000-memory.dmp

Filesize
788KB

Download
memory/2868-154-0x0000000000000000-mapping.dmp

Download
memory/3260-145-0x0000000000000000-mapping.dmp

Download
memory/3452-156-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads