formbook | cb791f412d5932e2488323eb036e19c6f495d1e89f6fcbbd0f4b81efba432378

General

Target

Busan Korea.exe
Size

1.1MB
MD5

c463ffa063af5cde7ad2a0aaf726854a
SHA1

64b49f2fbc2bbc943ddfc3515ecb6a3092ebf47c
SHA256

cb791f412d5932e2488323eb036e19c6f495d1e89f6fcbbd0f4b81efba432378
SHA512

076bd2ae39edc6acf501c925d0acb1a38e087fd2cd88e47463c0815bff6947828adffc610b0354fcc87ae43b95471ea4e4773349da1dcb6cd5d7128af8f497ae

Score

10^/10

formbook xloader loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.valiantbranch.com/0wdn/

Decoy

inclusivefamilybookshop.com

hollyjmillsphotography.com

mojavewellnessaz.com

cookies-x.info

trainingkanban.com

tempoborough.life

mayalv.com

mbsgiftstore.com

vanjele.com

serieshaha.com

jlbstructural.com

topkids.asia

thejoyofleather.com

qvujxa.com

anythinginworld.com

danielablason.com

smartphoneloops.com

thisisauckland.com

cityelectricals.com

revati-thenoir.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

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2140-16-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/2140-17-0x000000000041D110-mapping.dmp	xloader
behavioral2/memory/3920-26-0x0000000003130000-0x0000000003159000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

Processes:

Busan Korea.exeBusan Korea.exenetsh.exe

description	pid	process	target process
PID 3008 set thread context of 2140	3008	Busan Korea.exe	Busan Korea.exe
PID 2140 set thread context of 3020	2140	Busan Korea.exe	Explorer.EXE
PID 3920 set thread context of 3020	3920	netsh.exe	Explorer.EXE

Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

732 schtasks.exe

pid	process
732	schtasks.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

Busan Korea.exenetsh.exe

pid	process
2140	Busan Korea.exe
2140	Busan Korea.exe
2140	Busan Korea.exe
2140	Busan Korea.exe
3920	netsh.exe
3920	netsh.exe
3920	netsh.exe
3920	netsh.exe
3920	netsh.exe
3920	netsh.exe
3920	netsh.exe
3920	netsh.exe
3920	netsh.exe
3920	netsh.exe
3920	netsh.exe
3920	netsh.exe
3920	netsh.exe
3920	netsh.exe
3920	netsh.exe
3920	netsh.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Busan Korea.exenetsh.exe

pid process

2140 Busan Korea.exe
2140 Busan Korea.exe
2140 Busan Korea.exe
3920 netsh.exe
3920 netsh.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Busan Korea.exenetsh.exe

description pid process

Token: SeDebugPrivilege 2140 Busan Korea.exe
Token: SeDebugPrivilege 3920 netsh.exe

description	pid	process
Token: SeDebugPrivilege	2140	Busan Korea.exe
Token: SeDebugPrivilege	3920	netsh.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Busan Korea.exeExplorer.EXEnetsh.exe

description	pid	process	target process
PID 3008 wrote to memory of 732	3008	Busan Korea.exe	schtasks.exe
PID 3008 wrote to memory of 732	3008	Busan Korea.exe	schtasks.exe
PID 3008 wrote to memory of 732	3008	Busan Korea.exe	schtasks.exe
PID 3008 wrote to memory of 2140	3008	Busan Korea.exe	Busan Korea.exe
PID 3008 wrote to memory of 2140	3008	Busan Korea.exe	Busan Korea.exe
PID 3008 wrote to memory of 2140	3008	Busan Korea.exe	Busan Korea.exe
PID 3008 wrote to memory of 2140	3008	Busan Korea.exe	Busan Korea.exe
PID 3008 wrote to memory of 2140	3008	Busan Korea.exe	Busan Korea.exe
PID 3008 wrote to memory of 2140	3008	Busan Korea.exe	Busan Korea.exe
PID 3020 wrote to memory of 3920	3020	Explorer.EXE	netsh.exe
PID 3020 wrote to memory of 3920	3020	Explorer.EXE	netsh.exe
PID 3020 wrote to memory of 3920	3020	Explorer.EXE	netsh.exe
PID 3920 wrote to memory of 1852	3920	netsh.exe	cmd.exe
PID 3920 wrote to memory of 1852	3920	netsh.exe	cmd.exe
PID 3920 wrote to memory of 1852	3920	netsh.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3020

C:\Users\Admin\AppData\Local\Temp\Busan Korea.exe
"C:\Users\Admin\AppData\Local\Temp\Busan Korea.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3008

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uAqFmidTWJQD" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD293.tmp"
3⤵
- Creates scheduled task(s)
PID:732

C:\Users\Admin\AppData\Local\Temp\Busan Korea.exe
"C:\Users\Admin\AppData\Local\Temp\Busan Korea.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2140

C:\Windows\SysWOW64\netsh.exe
"C:\Windows\SysWOW64\netsh.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3920

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Busan Korea.exe"
3⤵
PID:1852

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD293.tmp
MD5
cbab395bd39532221e568f52e2c0ce7f

SHA1
d75483508695069125e35be72af8640164cacbb5

SHA256
fb548f8ea7d71f19806954be97a6f5841ce3eb80ba37d4ccc246ba3495995cc9

SHA512
b330610e993d47d3527e822273d0a572a46f166398704f0685944d006102759dfee1e783c7414b9e827966dbd125bf242f283f1471d849c8827277d5f0a0ba46

Download Submit
memory/732-14-0x0000000000000000-mapping.dmp

Download
memory/1852-24-0x0000000000000000-mapping.dmp

Download
memory/2140-21-0x00000000015E0000-0x00000000015F0000-memory.dmp

Filesize
64KB

Download
memory/2140-20-0x0000000001B30000-0x0000000001E50000-memory.dmp

Filesize
3.1MB

Download
memory/2140-17-0x000000000041D110-mapping.dmp

Download
memory/2140-16-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/3008-9-0x00000000059C0000-0x00000000059C1000-memory.dmp

Filesize
4KB

Download
memory/3008-5-0x0000000005530000-0x0000000005531000-memory.dmp

Filesize
4KB

Download
memory/3008-12-0x0000000005880000-0x0000000005893000-memory.dmp

Filesize
76KB

Download
memory/3008-13-0x0000000001380000-0x0000000001424000-memory.dmp

Filesize
656KB

Download
memory/3008-10-0x0000000005FD0000-0x0000000005FD1000-memory.dmp

Filesize
4KB

Download
memory/3008-2-0x0000000073920000-0x000000007400E000-memory.dmp

Filesize
6.9MB

Download
memory/3008-8-0x00000000055F0000-0x00000000055F1000-memory.dmp

Filesize
4KB

Download
memory/3008-7-0x0000000005670000-0x0000000005671000-memory.dmp

Filesize
4KB

Download
memory/3008-6-0x0000000005AD0000-0x0000000005AD1000-memory.dmp

Filesize
4KB

Download
memory/3008-11-0x00000000058B0000-0x00000000058B1000-memory.dmp

Filesize
4KB

Download
memory/3008-3-0x0000000000BD0000-0x0000000000BD1000-memory.dmp

Filesize
4KB

Download
memory/3020-22-0x0000000002B20000-0x0000000002C1C000-memory.dmp

Filesize
1008KB

Download
memory/3020-30-0x0000000006170000-0x00000000062D2000-memory.dmp

Filesize
1.4MB

Download
memory/3920-23-0x0000000000000000-mapping.dmp

Download
memory/3920-25-0x0000000001010000-0x000000000102E000-memory.dmp

Filesize
120KB

Download
memory/3920-26-0x0000000003130000-0x0000000003159000-memory.dmp

Filesize
164KB

Download
memory/3920-27-0x0000000003940000-0x0000000003C60000-memory.dmp

Filesize
3.1MB

Download
memory/3920-29-0x0000000003CF0000-0x0000000003D7F000-memory.dmp

Filesize
572KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads