formbook | 5897858ea935658dd34bc4ef2692d4694eea6be164a9d8566b55c769dae2c8bc

General

Target

tmp.exe
Size

1.6MB
MD5

52da53b1c61bf409b32f845f3806479a
SHA1

4e4120c159b2ff506c8719332dc38298ac092659
SHA256

5897858ea935658dd34bc4ef2692d4694eea6be164a9d8566b55c769dae2c8bc
SHA512

3a1ffa7db0f5b90deccbf9f84033e19ed43f9d28006f40c2c8d1cbe7c337f6fd458c966bef0b29c8f1cde725d1e1abfecb65c00b5ae6f908dcb33ecb83c7dbca

Score

10^/10

formbook xloader mt88 loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

mt88

Decoy

syzbf32.xyz

pertlines.com

vybaveniprocyklostezky.com

elianmsalas.tech

a-snag-tokei-kaitori.com

tuvistaing.com

whoyoucall.net

l8e9gr.xyz

sophrologuemontevrain77.com

ciclean.com

the-roel.com

campgreencove.com

foremostbookkeeping.com

zamanscorner.com

efeturozemniyet.com

penelope.team

murata.life

solfuls.com

tradefitinvesting.com

skinbid.pro

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/1616-134-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/1616-136-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/364-144-0x0000000000980000-0x00000000009AB000-memory.dmp	xloader
behavioral2/memory/364-147-0x0000000000980000-0x00000000009AB000-memory.dmp	xloader

Executes dropped EXE 1 IoCs

Processes:

dfup1d6ipdx.exe

pid process

5084 dfup1d6ipdx.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
5084	dfup1d6ipdx.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wlanext.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	wlanext.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\PPCDLTBPSX = "C:\\Program Files (x86)\\Okboxkz\\dfup1d6ipdx.exe"	wlanext.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

tmp.exeunlodctr.exewlanext.exe

description	pid	process	target process
PID 5060 set thread context of 1616	5060	tmp.exe	unlodctr.exe
PID 1616 set thread context of 2608	1616	unlodctr.exe	Explorer.EXE
PID 364 set thread context of 2608	364	wlanext.exe	Explorer.EXE

Drops file in Program Files directory 4 IoCs

Processes:

Explorer.EXEwlanext.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Okboxkz\dfup1d6ipdx.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Okboxkz\dfup1d6ipdx.exe	wlanext.exe
File opened for modification	C:\Program Files (x86)\Okboxkz	Explorer.EXE
File created	C:\Program Files (x86)\Okboxkz\dfup1d6ipdx.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wlanext.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wlanext.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

tmp.exeunlodctr.exewlanext.exe

pid	process
5060	tmp.exe
5060	tmp.exe
5060	tmp.exe
5060	tmp.exe
5060	tmp.exe
5060	tmp.exe
5060	tmp.exe
5060	tmp.exe
5060	tmp.exe
5060	tmp.exe
1616	unlodctr.exe
1616	unlodctr.exe
1616	unlodctr.exe
1616	unlodctr.exe
5060	tmp.exe
5060	tmp.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2608 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

unlodctr.exewlanext.exe

pid process

1616 unlodctr.exe
1616 unlodctr.exe
1616 unlodctr.exe
364 wlanext.exe
364 wlanext.exe
364 wlanext.exe
364 wlanext.exe

pid	process
2608	Explorer.EXE

pid	process
1616	unlodctr.exe
1616	unlodctr.exe
1616	unlodctr.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe
364	wlanext.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

Processes:

tmp.exeunlodctr.exewlanext.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	5060	tmp.exe
Token: SeDebugPrivilege	1616	unlodctr.exe
Token: SeDebugPrivilege	364	wlanext.exe
Token: SeShutdownPrivilege	2608	Explorer.EXE
Token: SeCreatePagefilePrivilege	2608	Explorer.EXE
Token: SeShutdownPrivilege	2608	Explorer.EXE
Token: SeCreatePagefilePrivilege	2608	Explorer.EXE
Token: SeShutdownPrivilege	2608	Explorer.EXE
Token: SeCreatePagefilePrivilege	2608	Explorer.EXE
Token: SeShutdownPrivilege	2608	Explorer.EXE
Token: SeCreatePagefilePrivilege	2608	Explorer.EXE

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

tmp.exeExplorer.EXEwlanext.exe

description	pid	process	target process
PID 5060 wrote to memory of 4176	5060	tmp.exe	wecutil.exe
PID 5060 wrote to memory of 4176	5060	tmp.exe	wecutil.exe
PID 5060 wrote to memory of 4176	5060	tmp.exe	wecutil.exe
PID 5060 wrote to memory of 1616	5060	tmp.exe	unlodctr.exe
PID 5060 wrote to memory of 1616	5060	tmp.exe	unlodctr.exe
PID 5060 wrote to memory of 1616	5060	tmp.exe	unlodctr.exe
PID 5060 wrote to memory of 1616	5060	tmp.exe	unlodctr.exe
PID 5060 wrote to memory of 1616	5060	tmp.exe	unlodctr.exe
PID 5060 wrote to memory of 1616	5060	tmp.exe	unlodctr.exe
PID 5060 wrote to memory of 1616	5060	tmp.exe	unlodctr.exe
PID 2608 wrote to memory of 364	2608	Explorer.EXE	wlanext.exe
PID 2608 wrote to memory of 364	2608	Explorer.EXE	wlanext.exe
PID 2608 wrote to memory of 364	2608	Explorer.EXE	wlanext.exe
PID 364 wrote to memory of 4112	364	wlanext.exe	cmd.exe
PID 364 wrote to memory of 4112	364	wlanext.exe	cmd.exe
PID 364 wrote to memory of 4112	364	wlanext.exe	cmd.exe
PID 364 wrote to memory of 1680	364	wlanext.exe	cmd.exe
PID 364 wrote to memory of 1680	364	wlanext.exe	cmd.exe
PID 364 wrote to memory of 1680	364	wlanext.exe	cmd.exe
PID 364 wrote to memory of 1252	364	wlanext.exe	cmd.exe
PID 364 wrote to memory of 1252	364	wlanext.exe	cmd.exe
PID 364 wrote to memory of 1252	364	wlanext.exe	cmd.exe
PID 364 wrote to memory of 4352	364	wlanext.exe	Firefox.exe
PID 364 wrote to memory of 4352	364	wlanext.exe	Firefox.exe
PID 364 wrote to memory of 4352	364	wlanext.exe	Firefox.exe
PID 2608 wrote to memory of 5084	2608	Explorer.EXE	dfup1d6ipdx.exe
PID 2608 wrote to memory of 5084	2608	Explorer.EXE	dfup1d6ipdx.exe
PID 2608 wrote to memory of 5084	2608	Explorer.EXE	dfup1d6ipdx.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:2608

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5060

C:\Windows\SysWOW64\wecutil.exe
"C:\Windows\SysWOW64\wecutil.exe"
3⤵
PID:4176

C:\Windows\SysWOW64\unlodctr.exe
"C:\Windows\SysWOW64\unlodctr.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1616

C:\Windows\SysWOW64\wlanext.exe
"C:\Windows\SysWOW64\wlanext.exe"
2⤵
- Adds 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:364

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\unlodctr.exe"
3⤵
PID:4112

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:1680

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:1252

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:4352

C:\Program Files (x86)\Okboxkz\dfup1d6ipdx.exe
"C:\Program Files (x86)\Okboxkz\dfup1d6ipdx.exe"
2⤵
- Executes dropped EXE
PID:5084

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files (x86)\Okboxkz\dfup1d6ipdx.exe

Filesize
33KB

MD5
eaf86537e26cc81c0767e58f66e01f52

SHA1
d9f24d699714586148342700f4490f7597ab0e7b

SHA256
68e5607d0aa1a52bff70fe53c7eb0c5d27b342886bcbfea7fbfefd4168951f9b

SHA512
75e591dbac45ed1559559a47405d2e934d3d41d1e37cbb712f575dbf140509c3c60fe335e60006331c8e694558ce8635e116e7edd244d5105664eae79bfc2524

Download Submit
C:\Program Files (x86)\Okboxkz\dfup1d6ipdx.exe

Filesize
33KB

MD5
eaf86537e26cc81c0767e58f66e01f52

SHA1
d9f24d699714586148342700f4490f7597ab0e7b

SHA256
68e5607d0aa1a52bff70fe53c7eb0c5d27b342886bcbfea7fbfefd4168951f9b

SHA512
75e591dbac45ed1559559a47405d2e934d3d41d1e37cbb712f575dbf140509c3c60fe335e60006331c8e694558ce8635e116e7edd244d5105664eae79bfc2524

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/364-142-0x0000000000190000-0x00000000001A7000-memory.dmp

Filesize
92KB

Download
memory/364-147-0x0000000000980000-0x00000000009AB000-memory.dmp

Filesize
172KB

Download
memory/364-145-0x00000000010B0000-0x0000000001140000-memory.dmp

Filesize
576KB

Download
memory/364-144-0x0000000000980000-0x00000000009AB000-memory.dmp

Filesize
172KB

Download
memory/364-140-0x0000000000000000-mapping.dmp

Download
memory/364-143-0x0000000001320000-0x000000000166A000-memory.dmp

Filesize
3.3MB

Download
memory/1252-151-0x0000000000000000-mapping.dmp

Download
memory/1616-137-0x0000000001970000-0x0000000001CBA000-memory.dmp

Filesize
3.3MB

Download
memory/1616-136-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1616-133-0x0000000000000000-mapping.dmp

Download
memory/1616-138-0x0000000001750000-0x0000000001761000-memory.dmp

Filesize
68KB

Download
memory/1616-134-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1680-149-0x0000000000000000-mapping.dmp

Download
memory/2608-148-0x0000000008690000-0x00000000087E9000-memory.dmp

Filesize
1.3MB

Download
memory/2608-146-0x0000000008690000-0x00000000087E9000-memory.dmp

Filesize
1.3MB

Download
memory/2608-139-0x00000000084A0000-0x00000000085E7000-memory.dmp

Filesize
1.3MB

Download
memory/4112-141-0x0000000000000000-mapping.dmp

Download
memory/4176-132-0x0000000000000000-mapping.dmp

Download
memory/5060-130-0x0000000000620000-0x00000000007C2000-memory.dmp

Filesize
1.6MB

Download
memory/5060-131-0x0000000005100000-0x000000000519C000-memory.dmp

Filesize
624KB

Download
memory/5084-153-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads