formbook | d615091d01a9b770caa28a2b453b3ba57d3e0c42bb8fc5b38ceb64742ee46550

General

Target

QUOTATION.exe
Size

1.1MB
MD5

4ce1ff3c9b5b16f57513e1c54ee4e96d
SHA1

d024009dbb744ae61815eeb9e0519948b063e059
SHA256

bdf00456287e3b458420249732255abf583ab0d6b5eb263f45d6ff329abdde93
SHA512

f03fa30e8081cbd11d13475641e4bfad6bd0147c670b764346f8c3255fae9992e8d8c82cabc4ce57a58732de1d4ef8a6220a2b71bb6f1ba9d82fb042c23ae619

Score

10^/10

formbook xloader c2ue loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

c2ue

C2

http://www.heidevelop.xyz/c2ue/

Decoy

isportdata.com

stellarex.energy

hsucollections.com

menuhaisan.com

joe-tzu.com

lumichargemktg.com

uae.tires

rapidcae.com

softwaresystemsolutions.com

s-galaxy.website

daewon-talks.net

northgamesnetwork.com

catalogue-bouyguestele.com

criativanet.com

theseasonalshift.com

actionfoto.online

openmaildoe.com

trashpenguin.com

ennopure.net

azurermine.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 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3976-125-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/3976-126-0x000000000041D3A0-mapping.dmp	xloader
behavioral2/memory/2872-132-0x0000000001280000-0x00000000012A9000-memory.dmp	xloader
behavioral2/memory/2200-155-0x000000000041D3A0-mapping.dmp	xloader

Executes dropped EXE 2 IoCs

Processes:

sz-d7bplnxxf.exesz-d7bplnxxf.exe

pid process

1200 sz-d7bplnxxf.exe
2200 sz-d7bplnxxf.exe

pid	process
1200	sz-d7bplnxxf.exe
2200	sz-d7bplnxxf.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	chkdsk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\GLRT5TBP16 = "C:\\Program Files (x86)\\E0tbxnly\\sz-d7bplnxxf.exe"	chkdsk.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

QUOTATION.exeQUOTATION.exechkdsk.exesz-d7bplnxxf.exe

description	pid	process	target process
PID 900 set thread context of 3976	900	QUOTATION.exe	QUOTATION.exe
PID 3976 set thread context of 3024	3976	QUOTATION.exe	Explorer.EXE
PID 2872 set thread context of 3024	2872	chkdsk.exe	Explorer.EXE
PID 1200 set thread context of 2200	1200	sz-d7bplnxxf.exe	sz-d7bplnxxf.exe

Drops file in Program Files directory 4 IoCs

Processes:

chkdsk.exeExplorer.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\E0tbxnly\sz-d7bplnxxf.exe	chkdsk.exe
File opened for modification	C:\Program Files (x86)\E0tbxnly	Explorer.EXE
File created	C:\Program Files (x86)\E0tbxnly\sz-d7bplnxxf.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\E0tbxnly\sz-d7bplnxxf.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1594587808-2047097707-2163810515-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

QUOTATION.exeQUOTATION.exechkdsk.exe

pid	process
900	QUOTATION.exe
900	QUOTATION.exe
900	QUOTATION.exe
900	QUOTATION.exe
900	QUOTATION.exe
900	QUOTATION.exe
3976	QUOTATION.exe
3976	QUOTATION.exe
3976	QUOTATION.exe
3976	QUOTATION.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3024 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

QUOTATION.exechkdsk.exe

pid process

3976 QUOTATION.exe
3976 QUOTATION.exe
3976 QUOTATION.exe
2872 chkdsk.exe
2872 chkdsk.exe
2872 chkdsk.exe
2872 chkdsk.exe

pid	process
3024	Explorer.EXE

pid	process
3976	QUOTATION.exe
3976	QUOTATION.exe
3976	QUOTATION.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe
2872	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

Processes:

QUOTATION.exeQUOTATION.exechkdsk.exeExplorer.EXEsz-d7bplnxxf.exe

description	pid	process
Token: SeDebugPrivilege	900	QUOTATION.exe
Token: SeDebugPrivilege	3976	QUOTATION.exe
Token: SeDebugPrivilege	2872	chkdsk.exe
Token: SeShutdownPrivilege	3024	Explorer.EXE
Token: SeCreatePagefilePrivilege	3024	Explorer.EXE
Token: SeShutdownPrivilege	3024	Explorer.EXE
Token: SeCreatePagefilePrivilege	3024	Explorer.EXE
Token: SeShutdownPrivilege	3024	Explorer.EXE
Token: SeCreatePagefilePrivilege	3024	Explorer.EXE
Token: SeShutdownPrivilege	3024	Explorer.EXE
Token: SeCreatePagefilePrivilege	3024	Explorer.EXE
Token: SeShutdownPrivilege	3024	Explorer.EXE
Token: SeCreatePagefilePrivilege	3024	Explorer.EXE
Token: SeDebugPrivilege	2200	sz-d7bplnxxf.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3024 Explorer.EXE

pid	process
3024	Explorer.EXE

Suspicious use of WriteProcessMemory 33 IoCs

Processes:

QUOTATION.exeExplorer.EXEchkdsk.exesz-d7bplnxxf.exe

description	pid	process	target process
PID 900 wrote to memory of 3772	900	QUOTATION.exe	QUOTATION.exe
PID 900 wrote to memory of 3772	900	QUOTATION.exe	QUOTATION.exe
PID 900 wrote to memory of 3772	900	QUOTATION.exe	QUOTATION.exe
PID 900 wrote to memory of 3980	900	QUOTATION.exe	QUOTATION.exe
PID 900 wrote to memory of 3980	900	QUOTATION.exe	QUOTATION.exe
PID 900 wrote to memory of 3980	900	QUOTATION.exe	QUOTATION.exe
PID 900 wrote to memory of 2644	900	QUOTATION.exe	QUOTATION.exe
PID 900 wrote to memory of 2644	900	QUOTATION.exe	QUOTATION.exe
PID 900 wrote to memory of 2644	900	QUOTATION.exe	QUOTATION.exe
PID 900 wrote to memory of 3976	900	QUOTATION.exe	QUOTATION.exe
PID 900 wrote to memory of 3976	900	QUOTATION.exe	QUOTATION.exe
PID 900 wrote to memory of 3976	900	QUOTATION.exe	QUOTATION.exe
PID 900 wrote to memory of 3976	900	QUOTATION.exe	QUOTATION.exe
PID 900 wrote to memory of 3976	900	QUOTATION.exe	QUOTATION.exe
PID 900 wrote to memory of 3976	900	QUOTATION.exe	QUOTATION.exe
PID 3024 wrote to memory of 2872	3024	Explorer.EXE	chkdsk.exe
PID 3024 wrote to memory of 2872	3024	Explorer.EXE	chkdsk.exe
PID 3024 wrote to memory of 2872	3024	Explorer.EXE	chkdsk.exe
PID 2872 wrote to memory of 2624	2872	chkdsk.exe	cmd.exe
PID 2872 wrote to memory of 2624	2872	chkdsk.exe	cmd.exe
PID 2872 wrote to memory of 2624	2872	chkdsk.exe	cmd.exe
PID 2872 wrote to memory of 1180	2872	chkdsk.exe	Firefox.exe
PID 2872 wrote to memory of 1180	2872	chkdsk.exe	Firefox.exe
PID 2872 wrote to memory of 1180	2872	chkdsk.exe	Firefox.exe
PID 3024 wrote to memory of 1200	3024	Explorer.EXE	sz-d7bplnxxf.exe
PID 3024 wrote to memory of 1200	3024	Explorer.EXE	sz-d7bplnxxf.exe
PID 3024 wrote to memory of 1200	3024	Explorer.EXE	sz-d7bplnxxf.exe
PID 1200 wrote to memory of 2200	1200	sz-d7bplnxxf.exe	sz-d7bplnxxf.exe
PID 1200 wrote to memory of 2200	1200	sz-d7bplnxxf.exe	sz-d7bplnxxf.exe
PID 1200 wrote to memory of 2200	1200	sz-d7bplnxxf.exe	sz-d7bplnxxf.exe
PID 1200 wrote to memory of 2200	1200	sz-d7bplnxxf.exe	sz-d7bplnxxf.exe
PID 1200 wrote to memory of 2200	1200	sz-d7bplnxxf.exe	sz-d7bplnxxf.exe
PID 1200 wrote to memory of 2200	1200	sz-d7bplnxxf.exe	sz-d7bplnxxf.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 UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3024

C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:900

C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe
"{path}"
3⤵
PID:3772

C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe
"{path}"
3⤵
PID:3980

C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe
"{path}"
3⤵
PID:2644

C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3976

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2872

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe"
3⤵
PID:2624

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1180

C:\Program Files (x86)\E0tbxnly\sz-d7bplnxxf.exe
"C:\Program Files (x86)\E0tbxnly\sz-d7bplnxxf.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1200

C:\Program Files (x86)\E0tbxnly\sz-d7bplnxxf.exe
"{path}"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2200

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

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Program Files (x86)\E0tbxnly\sz-d7bplnxxf.exe
MD5
4b884e7c31a014c98f319fbab3e9a435

SHA1
ea759f37f0c89ebf2bb33aa41b25527c01f37c99

SHA256
51026b73c90c835e8003a9f695b3ba73e0f47a6047a67b9bf754f1b649deebda

SHA512
2bf3d2fbe6f66bd1a7400701a040d844708ed49e92fe8e4280853e8c8e52b9eda9f43b398acd34af2e27a4de3202e4ca305edec676953a5ac803db3770a5bff2

Download Submit
C:\Program Files (x86)\E0tbxnly\sz-d7bplnxxf.exe
MD5
4b884e7c31a014c98f319fbab3e9a435

SHA1
ea759f37f0c89ebf2bb33aa41b25527c01f37c99

SHA256
51026b73c90c835e8003a9f695b3ba73e0f47a6047a67b9bf754f1b649deebda

SHA512
2bf3d2fbe6f66bd1a7400701a040d844708ed49e92fe8e4280853e8c8e52b9eda9f43b398acd34af2e27a4de3202e4ca305edec676953a5ac803db3770a5bff2

Download Submit
C:\Program Files (x86)\E0tbxnly\sz-d7bplnxxf.exe
MD5
4b884e7c31a014c98f319fbab3e9a435

SHA1
ea759f37f0c89ebf2bb33aa41b25527c01f37c99

SHA256
51026b73c90c835e8003a9f695b3ba73e0f47a6047a67b9bf754f1b649deebda

SHA512
2bf3d2fbe6f66bd1a7400701a040d844708ed49e92fe8e4280853e8c8e52b9eda9f43b398acd34af2e27a4de3202e4ca305edec676953a5ac803db3770a5bff2

Download Submit
memory/900-123-0x0000000009230000-0x00000000092AE000-memory.dmp

Filesize
504KB

Download
memory/900-117-0x00000000059E0000-0x00000000059E1000-memory.dmp

Filesize
4KB

Download
memory/900-116-0x0000000005440000-0x0000000005441000-memory.dmp

Filesize
4KB

Download
memory/900-121-0x0000000005740000-0x0000000005741000-memory.dmp

Filesize
4KB

Download
memory/900-119-0x0000000005360000-0x00000000053FC000-memory.dmp

Filesize
624KB

Download
memory/900-114-0x00000000009B0000-0x00000000009B1000-memory.dmp

Filesize
4KB

Download
memory/900-124-0x00000000090D0000-0x00000000090FB000-memory.dmp

Filesize
172KB

Download
memory/900-118-0x0000000005580000-0x0000000005581000-memory.dmp

Filesize
4KB

Download
memory/900-122-0x0000000002E00000-0x0000000002E0E000-memory.dmp

Filesize
56KB

Download
memory/900-120-0x00000000054E0000-0x00000000054E1000-memory.dmp

Filesize
4KB

Download
memory/1180-150-0x00007FF639090000-0x00007FF639123000-memory.dmp

Filesize
588KB

Download
memory/1180-151-0x000001F9E8E10000-0x000001F9E8FA0000-memory.dmp

Filesize
1.6MB

Download
memory/1180-137-0x0000000000000000-mapping.dmp

Download
memory/1200-148-0x0000000005800000-0x0000000005CFE000-memory.dmp

Filesize
5.0MB

Download
memory/1200-138-0x0000000000000000-mapping.dmp

Download
memory/2200-157-0x00000000015E0000-0x0000000001900000-memory.dmp

Filesize
3.1MB

Download
memory/2200-155-0x000000000041D3A0-mapping.dmp

Download
memory/2624-133-0x0000000000000000-mapping.dmp

Download
memory/2872-132-0x0000000001280000-0x00000000012A9000-memory.dmp

Filesize
164KB

Download
memory/2872-130-0x0000000000000000-mapping.dmp

Download
memory/2872-134-0x0000000005B00000-0x0000000005E20000-memory.dmp

Filesize
3.1MB

Download
memory/2872-131-0x0000000001320000-0x000000000132A000-memory.dmp

Filesize
40KB

Download
memory/2872-135-0x0000000005990000-0x0000000005A20000-memory.dmp

Filesize
576KB

Download
memory/3024-129-0x0000000005E30000-0x0000000005FA5000-memory.dmp

Filesize
1.5MB

Download
memory/3024-136-0x0000000005CB0000-0x0000000005D8A000-memory.dmp

Filesize
872KB

Download
memory/3976-126-0x000000000041D3A0-mapping.dmp

Download
memory/3976-127-0x0000000001A30000-0x0000000001D50000-memory.dmp

Filesize
3.1MB

Download
memory/3976-125-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3976-128-0x00000000019B0000-0x00000000019C1000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads