formbook | 10e55528343098fef510828eea445cddd10d15d04e119ccadc3745c19adc458c

Analysis

max time kernel
149s
max time network
157s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
04-10-2022 04:18

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General

Target

Purchase Order MRQ-5525.exe
Size

322KB
MD5

aac47b26622b7b112abb2cf4545409b4
SHA1

a1878da3ea31f946527897a759ffb1c9393fe426
SHA256

f46d6d7bf1c9f466498c2a11c9c96fcc594c3490db04e763f81e7552f7ae6764
SHA512

ec2eb8dc95fab52b7d5a8419dd4727e185b23e355de17fbbd8c512f84f07ac1822307c76f9239861ce6266f4dc71e568c7246c6321da0d02cce0674c231f3ef9
SSDEEP

6144:T0YnOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOy:lOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO3

Score

10^/10

formbook xloader ygkp loader persistence rat spyware stealer 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

Xloader payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1388-63-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1388-64-0x000000000041F350-mapping.dmp	xloader
behavioral1/memory/1388-67-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral1/memory/1084-75-0x00000000000C0000-0x00000000000EB000-memory.dmp	xloader
behavioral1/memory/1084-79-0x00000000000C0000-0x00000000000EB000-memory.dmp	xloader

Executes dropped EXE 3 IoCs

Processes:

ugoumezapn.exeugoumezapn.exemfccbcpfzx.exe

pid process

1592 ugoumezapn.exe
1388 ugoumezapn.exe
1932 mfccbcpfzx.exe
Loads dropped DLL 5 IoCs

Processes:

Purchase Order MRQ-5525.exeugoumezapn.exeWerFault.exe

pid process

2012 Purchase Order MRQ-5525.exe
1592 ugoumezapn.exe
1728 WerFault.exe
1728 WerFault.exe
1728 WerFault.exe

pid	process
1592	ugoumezapn.exe
1388	ugoumezapn.exe
1932	mfccbcpfzx.exe

pid	process
2012	Purchase Order MRQ-5525.exe
1592	ugoumezapn.exe
1728	WerFault.exe
1728	WerFault.exe
1728	WerFault.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

help.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	help.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\-Z-XJLGPTH = "C:\\Program Files (x86)\\Dbbcdufw\\mfccbcpfzx.exe"	help.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

ugoumezapn.exeugoumezapn.exehelp.exe

description	pid	process	target process
PID 1592 set thread context of 1388	1592	ugoumezapn.exe	ugoumezapn.exe
PID 1388 set thread context of 1248	1388	ugoumezapn.exe	Explorer.EXE
PID 1084 set thread context of 1248	1084	help.exe	Explorer.EXE

Drops file in Program Files directory 2 IoCs

Processes:

help.exeExplorer.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\Dbbcdufw\mfccbcpfzx.exe	help.exe
File created	C:\Program Files (x86)\Dbbcdufw\mfccbcpfzx.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1728 1932 WerFault.exe mfccbcpfzx.exe

pid	pid_target	process	target process
1728	1932	WerFault.exe	mfccbcpfzx.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

help.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-999675638-2867687379-27515722-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	help.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

ugoumezapn.exehelp.exe

pid	process
1388	ugoumezapn.exe
1388	ugoumezapn.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe
1084	help.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

ugoumezapn.exehelp.exe

pid process

1388 ugoumezapn.exe
1388 ugoumezapn.exe
1388 ugoumezapn.exe
1084 help.exe
1084 help.exe
1084 help.exe
1084 help.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ugoumezapn.exehelp.exe

description pid process

Token: SeDebugPrivilege 1388 ugoumezapn.exe
Token: SeDebugPrivilege 1084 help.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1248 Explorer.EXE
1248 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1248 Explorer.EXE
1248 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1388	ugoumezapn.exe
Token: SeDebugPrivilege	1084	help.exe

pid	process
1248	Explorer.EXE
1248	Explorer.EXE

pid	process
1248	Explorer.EXE
1248	Explorer.EXE

Suspicious use of WriteProcessMemory 32 IoCs

Processes:

Purchase Order MRQ-5525.exeugoumezapn.exeExplorer.EXEhelp.exemfccbcpfzx.exe

description	pid	process	target process
PID 2012 wrote to memory of 1592	2012	Purchase Order MRQ-5525.exe	ugoumezapn.exe
PID 2012 wrote to memory of 1592	2012	Purchase Order MRQ-5525.exe	ugoumezapn.exe
PID 2012 wrote to memory of 1592	2012	Purchase Order MRQ-5525.exe	ugoumezapn.exe
PID 2012 wrote to memory of 1592	2012	Purchase Order MRQ-5525.exe	ugoumezapn.exe
PID 1592 wrote to memory of 1388	1592	ugoumezapn.exe	ugoumezapn.exe
PID 1592 wrote to memory of 1388	1592	ugoumezapn.exe	ugoumezapn.exe
PID 1592 wrote to memory of 1388	1592	ugoumezapn.exe	ugoumezapn.exe
PID 1592 wrote to memory of 1388	1592	ugoumezapn.exe	ugoumezapn.exe
PID 1592 wrote to memory of 1388	1592	ugoumezapn.exe	ugoumezapn.exe
PID 1592 wrote to memory of 1388	1592	ugoumezapn.exe	ugoumezapn.exe
PID 1592 wrote to memory of 1388	1592	ugoumezapn.exe	ugoumezapn.exe
PID 1248 wrote to memory of 1084	1248	Explorer.EXE	help.exe
PID 1248 wrote to memory of 1084	1248	Explorer.EXE	help.exe
PID 1248 wrote to memory of 1084	1248	Explorer.EXE	help.exe
PID 1248 wrote to memory of 1084	1248	Explorer.EXE	help.exe
PID 1084 wrote to memory of 1704	1084	help.exe	cmd.exe
PID 1084 wrote to memory of 1704	1084	help.exe	cmd.exe
PID 1084 wrote to memory of 1704	1084	help.exe	cmd.exe
PID 1084 wrote to memory of 1704	1084	help.exe	cmd.exe
PID 1084 wrote to memory of 1152	1084	help.exe	Firefox.exe
PID 1084 wrote to memory of 1152	1084	help.exe	Firefox.exe
PID 1084 wrote to memory of 1152	1084	help.exe	Firefox.exe
PID 1084 wrote to memory of 1152	1084	help.exe	Firefox.exe
PID 1084 wrote to memory of 1152	1084	help.exe	Firefox.exe
PID 1248 wrote to memory of 1932	1248	Explorer.EXE	mfccbcpfzx.exe
PID 1248 wrote to memory of 1932	1248	Explorer.EXE	mfccbcpfzx.exe
PID 1248 wrote to memory of 1932	1248	Explorer.EXE	mfccbcpfzx.exe
PID 1248 wrote to memory of 1932	1248	Explorer.EXE	mfccbcpfzx.exe
PID 1932 wrote to memory of 1728	1932	mfccbcpfzx.exe	WerFault.exe
PID 1932 wrote to memory of 1728	1932	mfccbcpfzx.exe	WerFault.exe
PID 1932 wrote to memory of 1728	1932	mfccbcpfzx.exe	WerFault.exe
PID 1932 wrote to memory of 1728	1932	mfccbcpfzx.exe	WerFault.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1248

C:\Users\Admin\AppData\Local\Temp\Purchase Order MRQ-5525.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order MRQ-5525.exe"
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2012

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:1592

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:1388

C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.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:1084

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\ugoumezapn.exe"
3⤵
PID:1704

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1152

C:\Program Files (x86)\Dbbcdufw\mfccbcpfzx.exe
"C:\Program Files (x86)\Dbbcdufw\mfccbcpfzx.exe"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1932 -s 204
3⤵
- Loads dropped DLL
- Program crash
PID:1728

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Dbbcdufw\mfccbcpfzx.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\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
\Program Files (x86)\Dbbcdufw\mfccbcpfzx.exe
Filesize
132KB

MD5
c425c007ed7b3ee305dbea78ec07d10e

SHA1
c254da6e0a53106504bc6f8db88e3ba0678498b6

SHA256
3e839029b68aaccf0e3566d63fa34f9d165c81d365c49ef8fae6d13b1612df19

SHA512
d4036e691d4155d4760172dd7b4e5cc6cf70d676735b7d9fcf652ad2002f6710dd2aeff1f500bf36aa54bc2abbc3c9cbed1fa3bf6d8fdfed5b95b79428012ee0

Download Submit
\Program Files (x86)\Dbbcdufw\mfccbcpfzx.exe
Filesize
132KB

MD5
c425c007ed7b3ee305dbea78ec07d10e

SHA1
c254da6e0a53106504bc6f8db88e3ba0678498b6

SHA256
3e839029b68aaccf0e3566d63fa34f9d165c81d365c49ef8fae6d13b1612df19

SHA512
d4036e691d4155d4760172dd7b4e5cc6cf70d676735b7d9fcf652ad2002f6710dd2aeff1f500bf36aa54bc2abbc3c9cbed1fa3bf6d8fdfed5b95b79428012ee0

Download Submit
\Program Files (x86)\Dbbcdufw\mfccbcpfzx.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
\Users\Admin\AppData\Local\Temp\ugoumezapn.exe
Filesize
132KB

MD5
c425c007ed7b3ee305dbea78ec07d10e

SHA1
c254da6e0a53106504bc6f8db88e3ba0678498b6

SHA256
3e839029b68aaccf0e3566d63fa34f9d165c81d365c49ef8fae6d13b1612df19

SHA512
d4036e691d4155d4760172dd7b4e5cc6cf70d676735b7d9fcf652ad2002f6710dd2aeff1f500bf36aa54bc2abbc3c9cbed1fa3bf6d8fdfed5b95b79428012ee0

Download Submit
memory/1084-73-0x0000000000CE0000-0x0000000000CE6000-memory.dmp

Filesize
24KB

Download
memory/1084-79-0x00000000000C0000-0x00000000000EB000-memory.dmp

Filesize
172KB

Download
memory/1084-76-0x0000000000470000-0x0000000000500000-memory.dmp

Filesize
576KB

Download
memory/1084-75-0x00000000000C0000-0x00000000000EB000-memory.dmp

Filesize
172KB

Download
memory/1084-71-0x0000000000000000-mapping.dmp

Download
memory/1084-74-0x0000000000860000-0x0000000000B63000-memory.dmp

Filesize
3.0MB

Download
memory/1248-70-0x0000000004B00000-0x0000000004C79000-memory.dmp

Filesize
1.5MB

Download
memory/1248-80-0x0000000002A70000-0x0000000002B11000-memory.dmp

Filesize
644KB

Download
memory/1248-78-0x0000000004B00000-0x0000000004C79000-memory.dmp

Filesize
1.5MB

Download
memory/1248-77-0x0000000002A70000-0x0000000002B11000-memory.dmp

Filesize
644KB

Download
memory/1388-69-0x0000000000290000-0x00000000002A1000-memory.dmp

Filesize
68KB

Download
memory/1388-68-0x0000000000A10000-0x0000000000D13000-memory.dmp

Filesize
3.0MB

Download
memory/1388-67-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1388-64-0x000000000041F350-mapping.dmp

Download
memory/1388-63-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/1592-56-0x0000000000000000-mapping.dmp

Download
memory/1704-72-0x0000000000000000-mapping.dmp

Download
memory/1728-85-0x0000000000000000-mapping.dmp

Download
memory/1932-82-0x0000000000000000-mapping.dmp

Download
memory/2012-54-0x0000000075E81000-0x0000000075E83000-memory.dmp

Filesize
8KB

Download