formbook | 0d49317865221f81e49e88f6473af6639f15725fa9c894d1d4ee605de3951b65

General

Target

Swift Copy 05272022.exe
Size

322KB
MD5

aac47b26622b7b112abb2cf4545409b4
SHA1

a1878da3ea31f946527897a759ffb1c9393fe426
SHA256

f46d6d7bf1c9f466498c2a11c9c96fcc594c3490db04e763f81e7552f7ae6764
SHA512

ec2eb8dc95fab52b7d5a8419dd4727e185b23e355de17fbbd8c512f84f07ac1822307c76f9239861ce6266f4dc71e568c7246c6321da0d02cce0674c231f3ef9

Score

10^/10

formbook xloader ygkp loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

ygkp

Decoy

cbdlively.com

1nfo-post.com

janejohnsonlmt.com

autotradecryptoswithjack.com

mustang-international.net

dreamthorp.com

alexandratanner.net

exilings.com

gzjdgjg.com

51minzhu.com

wgv.info

raymondjamesconsult.com

omariblair.com

vaalerahealth.com

outdoorvoiceshop.com

spbo.info

blasiandating.online

c01-cdn48-oxble.xyz

mrmycology.com

installturbooax.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

Xloader Payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1324-63-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1324-64-0x000000000041F350-mapping.dmp	xloader
behavioral1/memory/1324-67-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1716-73-0x00000000000C0000-0x00000000000EB000-memory.dmp	xloader
behavioral1/memory/1716-78-0x00000000000C0000-0x00000000000EB000-memory.dmp	xloader

Executes dropped EXE 2 IoCs

Processes:

ugoumezapn.exeugoumezapn.exe

pid process

1852 ugoumezapn.exe
1324 ugoumezapn.exe
Loads dropped DLL 2 IoCs

Processes:

Swift Copy 05272022.exeugoumezapn.exe

pid process

1208 Swift Copy 05272022.exe
1852 ugoumezapn.exe

pid	process
1852	ugoumezapn.exe
1324	ugoumezapn.exe

pid	process
1208	Swift Copy 05272022.exe
1852	ugoumezapn.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\GBTHEFWHG8GX = "C:\\Program Files (x86)\\Htdr\\vgayjop.exe"	chkdsk.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

ugoumezapn.exeugoumezapn.exechkdsk.exe

description	pid	process	target process
PID 1852 set thread context of 1324	1852	ugoumezapn.exe	ugoumezapn.exe
PID 1324 set thread context of 1284	1324	ugoumezapn.exe	Explorer.EXE
PID 1716 set thread context of 1284	1716	chkdsk.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

chkdsk.exe

description ioc process

File opened for modification C:\Program Files (x86)\Htdr\vgayjop.exe chkdsk.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
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
File opened for modification	C:\Program Files (x86)\Htdr\vgayjop.exe	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-1-5-21-2277218442-1199762539-2004043321-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

ugoumezapn.exechkdsk.exe

pid	process
1324	ugoumezapn.exe
1324	ugoumezapn.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe
1716	chkdsk.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

ugoumezapn.exechkdsk.exe

pid process

1324 ugoumezapn.exe
1324 ugoumezapn.exe
1324 ugoumezapn.exe
1716 chkdsk.exe
1716 chkdsk.exe
1716 chkdsk.exe
1716 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ugoumezapn.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 1324 ugoumezapn.exe
Token: SeDebugPrivilege 1716 chkdsk.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
1284 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1284 Explorer.EXE
1284 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1324	ugoumezapn.exe
Token: SeDebugPrivilege	1716	chkdsk.exe

pid	process
1284	Explorer.EXE
1284	Explorer.EXE

pid	process
1284	Explorer.EXE
1284	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

Swift Copy 05272022.exeugoumezapn.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1208 wrote to memory of 1852	1208	Swift Copy 05272022.exe	ugoumezapn.exe
PID 1208 wrote to memory of 1852	1208	Swift Copy 05272022.exe	ugoumezapn.exe
PID 1208 wrote to memory of 1852	1208	Swift Copy 05272022.exe	ugoumezapn.exe
PID 1208 wrote to memory of 1852	1208	Swift Copy 05272022.exe	ugoumezapn.exe
PID 1852 wrote to memory of 1324	1852	ugoumezapn.exe	ugoumezapn.exe
PID 1852 wrote to memory of 1324	1852	ugoumezapn.exe	ugoumezapn.exe
PID 1852 wrote to memory of 1324	1852	ugoumezapn.exe	ugoumezapn.exe
PID 1852 wrote to memory of 1324	1852	ugoumezapn.exe	ugoumezapn.exe
PID 1852 wrote to memory of 1324	1852	ugoumezapn.exe	ugoumezapn.exe
PID 1852 wrote to memory of 1324	1852	ugoumezapn.exe	ugoumezapn.exe
PID 1852 wrote to memory of 1324	1852	ugoumezapn.exe	ugoumezapn.exe
PID 1284 wrote to memory of 1716	1284	Explorer.EXE	chkdsk.exe
PID 1284 wrote to memory of 1716	1284	Explorer.EXE	chkdsk.exe
PID 1284 wrote to memory of 1716	1284	Explorer.EXE	chkdsk.exe
PID 1284 wrote to memory of 1716	1284	Explorer.EXE	chkdsk.exe
PID 1716 wrote to memory of 1728	1716	chkdsk.exe	cmd.exe
PID 1716 wrote to memory of 1728	1716	chkdsk.exe	cmd.exe
PID 1716 wrote to memory of 1728	1716	chkdsk.exe	cmd.exe
PID 1716 wrote to memory of 1728	1716	chkdsk.exe	cmd.exe
PID 1716 wrote to memory of 1708	1716	chkdsk.exe	Firefox.exe
PID 1716 wrote to memory of 1708	1716	chkdsk.exe	Firefox.exe
PID 1716 wrote to memory of 1708	1716	chkdsk.exe	Firefox.exe
PID 1716 wrote to memory of 1708	1716	chkdsk.exe	Firefox.exe
PID 1716 wrote to memory of 1708	1716	chkdsk.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1284

C:\Users\Admin\AppData\Local\Temp\Swift Copy 05272022.exe
"C:\Users\Admin\AppData\Local\Temp\Swift Copy 05272022.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1208

C:\Users\Admin\AppData\Local\Temp\ugoumezapn.exe
C:\Users\Admin\AppData\Local\Temp\ugoumezapn.exe C:\Users\Admin\AppData\Local\Temp\ytsjpl
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1852

C:\Users\Admin\AppData\Local\Temp\ugoumezapn.exe
C:\Users\Admin\AppData\Local\Temp\ugoumezapn.exe C:\Users\Admin\AppData\Local\Temp\ytsjpl
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1324

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:1716

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\ugoumezapn.exe"
3⤵
PID:1728

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1708

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

System Information Discovery

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\ugoumezapn.exe
Filesize
132KB

MD5
c425c007ed7b3ee305dbea78ec07d10e

SHA1
c254da6e0a53106504bc6f8db88e3ba0678498b6

SHA256
3e839029b68aaccf0e3566d63fa34f9d165c81d365c49ef8fae6d13b1612df19

SHA512
d4036e691d4155d4760172dd7b4e5cc6cf70d676735b7d9fcf652ad2002f6710dd2aeff1f500bf36aa54bc2abbc3c9cbed1fa3bf6d8fdfed5b95b79428012ee0

Download Submit
C:\Users\Admin\AppData\Local\Temp\ugoumezapn.exe
Filesize
132KB

MD5
c425c007ed7b3ee305dbea78ec07d10e

SHA1
c254da6e0a53106504bc6f8db88e3ba0678498b6

SHA256
3e839029b68aaccf0e3566d63fa34f9d165c81d365c49ef8fae6d13b1612df19

SHA512
d4036e691d4155d4760172dd7b4e5cc6cf70d676735b7d9fcf652ad2002f6710dd2aeff1f500bf36aa54bc2abbc3c9cbed1fa3bf6d8fdfed5b95b79428012ee0

Download Submit
C:\Users\Admin\AppData\Local\Temp\ugoumezapn.exe
Filesize
132KB

MD5
c425c007ed7b3ee305dbea78ec07d10e

SHA1
c254da6e0a53106504bc6f8db88e3ba0678498b6

SHA256
3e839029b68aaccf0e3566d63fa34f9d165c81d365c49ef8fae6d13b1612df19

SHA512
d4036e691d4155d4760172dd7b4e5cc6cf70d676735b7d9fcf652ad2002f6710dd2aeff1f500bf36aa54bc2abbc3c9cbed1fa3bf6d8fdfed5b95b79428012ee0

Download Submit
C:\Users\Admin\AppData\Local\Temp\y84jg0z3myvs1ehq
Filesize
171KB

MD5
213b7ae988a475d2096b03e8b58c0cba

SHA1
8634ccaf2a816cc81363722430de5799b52eecd8

SHA256
997ba82b07c3d33f225975826ccfccabb6e13964bbc66bea8b484474fa067ccb

SHA512
9c167e42900af5df67fdc0ddbbcb9024d976667bee5427be5810c5df463deaf51c5ff96930be5100953940f8c57c29c47a656026268d7fba854eaec29a429ca6

Download Submit
C:\Users\Admin\AppData\Local\Temp\ytsjpl
Filesize
5KB

MD5
e89c8f428bf1e9512047a530ffab4cc0

SHA1
dae18c62de9ad71aaace440e570e0066d9977473

SHA256
b57b56853e974693eea1b67cccc726eeca122fc05587fc18cf86ad908c83ad21

SHA512
b9dadf686f1132456935afa2c0b3089565a727916d09658ffe321f48bbbea49ccd0446c61ce22567b5f0a9f1b81e9897cfbe0bd8d1131a9bb079f11cb4336271

Download Submit
\Users\Admin\AppData\Local\Temp\ugoumezapn.exe
Filesize
132KB

MD5
c425c007ed7b3ee305dbea78ec07d10e

SHA1
c254da6e0a53106504bc6f8db88e3ba0678498b6

SHA256
3e839029b68aaccf0e3566d63fa34f9d165c81d365c49ef8fae6d13b1612df19

SHA512
d4036e691d4155d4760172dd7b4e5cc6cf70d676735b7d9fcf652ad2002f6710dd2aeff1f500bf36aa54bc2abbc3c9cbed1fa3bf6d8fdfed5b95b79428012ee0

Download Submit
\Users\Admin\AppData\Local\Temp\ugoumezapn.exe
Filesize
132KB

MD5
c425c007ed7b3ee305dbea78ec07d10e

SHA1
c254da6e0a53106504bc6f8db88e3ba0678498b6

SHA256
3e839029b68aaccf0e3566d63fa34f9d165c81d365c49ef8fae6d13b1612df19

SHA512
d4036e691d4155d4760172dd7b4e5cc6cf70d676735b7d9fcf652ad2002f6710dd2aeff1f500bf36aa54bc2abbc3c9cbed1fa3bf6d8fdfed5b95b79428012ee0

Download Submit
memory/1208-54-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

Filesize
8KB

Download
memory/1284-79-0x0000000006C60000-0x0000000006DD4000-memory.dmp

Filesize
1.5MB

Download
memory/1284-77-0x0000000006C60000-0x0000000006DD4000-memory.dmp

Filesize
1.5MB

Download
memory/1284-70-0x0000000006B20000-0x0000000006C5B000-memory.dmp

Filesize
1.2MB

Download
memory/1324-68-0x0000000000700000-0x0000000000A03000-memory.dmp

Filesize
3.0MB

Download
memory/1324-67-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1324-69-0x0000000000450000-0x0000000000461000-memory.dmp

Filesize
68KB

Download
memory/1324-64-0x000000000041F350-mapping.dmp

Download
memory/1324-63-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1716-71-0x0000000000000000-mapping.dmp

Download
memory/1716-72-0x0000000000180000-0x0000000000187000-memory.dmp

Filesize
28KB

Download
memory/1716-73-0x00000000000C0000-0x00000000000EB000-memory.dmp

Filesize
172KB

Download
memory/1716-75-0x0000000001F00000-0x0000000002203000-memory.dmp

Filesize
3.0MB

Download
memory/1716-76-0x0000000001D90000-0x0000000001E20000-memory.dmp

Filesize
576KB

Download
memory/1716-78-0x00000000000C0000-0x00000000000EB000-memory.dmp

Filesize
172KB

Download
memory/1728-74-0x0000000000000000-mapping.dmp

Download
memory/1852-56-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads