formbook | ef5551b32efae3527d147f40eaac18ab0213b7382d5d54bc67fd1c9911007480

General

Target

STD 35 GA Plan_DOCX.exe
Size

681KB
MD5

1cb1b73c99d72a4d1dcc09858ad1cee5
SHA1

76a12baf54b1f66fbccc3728d3e1fc1ca663c6ee
SHA256

ef5551b32efae3527d147f40eaac18ab0213b7382d5d54bc67fd1c9911007480
SHA512

1206dc9ff04af0d47b96a9e7598fa72626f4d56d0f515ce77ab5d0239a5fa9a1f2d67ba72f0354ed77736078cf466814f7ab5b9497d31a0ef7213cec4e332682

Score

10^/10

formbook xloader iewb loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.9

Campaign

iewb

Decoy

n8FLlgIlb1rSEg5hJ9xMbw4hcmR38Q==

5vIAIY+pt81OtWs+FdIEdk7Y

LHIKc+oWGIQUUlfAAtEEdk7Y

ePM/cX2jvHrS

5hvPEw22+fdvmJz3C8FIVq0=

mb9EeX2jvHrS

Dx2zIYNvfjo8VUo5

6jVPnyJekv2RAc4gLKNwEqQ=

KWatHyjdE5Gj1Ng=

t9lk70gzUAZty4qjbVjF

6eUBeFPzKBWT125BFNIEdk7Y

dZUXOIyqTJGj1Ng=

iL3TVh2Jl5QVStnzxcAhIL8=

J1prtyklUfZGR/xDD71IbkWRd2yx

s9FgCOBRW9bU0Y6jbVjF

RYCbQDzcFBhcylgu

Fl0BV/8RJm6F9QRg8LXXTLo=

0dhumHzrCCZ3wdQg7nFF1AlL6Tk=

xvL+iL6wwX+/wH9K4lbZ/A==

N0lVceIFD5Gj1Ng=

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/1180-64-0x000000000041F840-mapping.dmp	xloader
behavioral1/memory/1180-63-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1180-66-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1984-72-0x0000000000070000-0x000000000009C000-memory.dmp	xloader
behavioral1/memory/1984-77-0x0000000000070000-0x000000000009C000-memory.dmp	xloader

Blocklisted process makes network request 1 IoCs

Processes:

wscript.exe

flow pid process

9 1984 wscript.exe

flow	pid	process
9	1984	wscript.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

STD 35 GA Plan_DOCX.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation	STD 35 GA Plan_DOCX.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1556 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

wscript.exe

pid process

1984 wscript.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
1556	cmd.exe

pid	process
1984	wscript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HHM81NWPVZ = "C:\\Program Files (x86)\\Gmtg\\msfbdx6ti.exe"	wscript.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

STD 35 GA Plan_DOCX.exeSTD 35 GA Plan_DOCX.exewscript.exe

description	pid	process	target process
PID 1336 set thread context of 1180	1336	STD 35 GA Plan_DOCX.exe	STD 35 GA Plan_DOCX.exe
PID 1180 set thread context of 1400	1180	STD 35 GA Plan_DOCX.exe	Explorer.EXE
PID 1984 set thread context of 1400	1984	wscript.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

wscript.exe

description ioc process

File opened for modification C:\Program Files (x86)\Gmtg\msfbdx6ti.exe wscript.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Program Files (x86)\Gmtg\msfbdx6ti.exe	wscript.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wscript.exe

Suspicious behavior: EnumeratesProcesses 13 IoCs

Processes:

STD 35 GA Plan_DOCX.exewscript.exe

pid	process
1180	STD 35 GA Plan_DOCX.exe
1180	STD 35 GA Plan_DOCX.exe
1984	wscript.exe
1984	wscript.exe
1984	wscript.exe
1984	wscript.exe
1984	wscript.exe
1984	wscript.exe
1984	wscript.exe
1984	wscript.exe
1984	wscript.exe
1984	wscript.exe
1984	wscript.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

STD 35 GA Plan_DOCX.exewscript.exe

pid	process
1180	STD 35 GA Plan_DOCX.exe
1180	STD 35 GA Plan_DOCX.exe
1180	STD 35 GA Plan_DOCX.exe
1984	wscript.exe
1984	wscript.exe
1984	wscript.exe
1984	wscript.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

STD 35 GA Plan_DOCX.exewscript.exe

description pid process

Token: SeDebugPrivilege 1180 STD 35 GA Plan_DOCX.exe
Token: SeDebugPrivilege 1984 wscript.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1400 Explorer.EXE
1400 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1400 Explorer.EXE
1400 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1180	STD 35 GA Plan_DOCX.exe
Token: SeDebugPrivilege	1984	wscript.exe

pid	process
1400	Explorer.EXE
1400	Explorer.EXE

pid	process
1400	Explorer.EXE
1400	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

STD 35 GA Plan_DOCX.exeExplorer.EXEwscript.exe

description	pid	process	target process
PID 1336 wrote to memory of 1180	1336	STD 35 GA Plan_DOCX.exe	STD 35 GA Plan_DOCX.exe
PID 1336 wrote to memory of 1180	1336	STD 35 GA Plan_DOCX.exe	STD 35 GA Plan_DOCX.exe
PID 1336 wrote to memory of 1180	1336	STD 35 GA Plan_DOCX.exe	STD 35 GA Plan_DOCX.exe
PID 1336 wrote to memory of 1180	1336	STD 35 GA Plan_DOCX.exe	STD 35 GA Plan_DOCX.exe
PID 1336 wrote to memory of 1180	1336	STD 35 GA Plan_DOCX.exe	STD 35 GA Plan_DOCX.exe
PID 1336 wrote to memory of 1180	1336	STD 35 GA Plan_DOCX.exe	STD 35 GA Plan_DOCX.exe
PID 1336 wrote to memory of 1180	1336	STD 35 GA Plan_DOCX.exe	STD 35 GA Plan_DOCX.exe
PID 1400 wrote to memory of 1984	1400	Explorer.EXE	wscript.exe
PID 1400 wrote to memory of 1984	1400	Explorer.EXE	wscript.exe
PID 1400 wrote to memory of 1984	1400	Explorer.EXE	wscript.exe
PID 1400 wrote to memory of 1984	1400	Explorer.EXE	wscript.exe
PID 1984 wrote to memory of 1556	1984	wscript.exe	cmd.exe
PID 1984 wrote to memory of 1556	1984	wscript.exe	cmd.exe
PID 1984 wrote to memory of 1556	1984	wscript.exe	cmd.exe
PID 1984 wrote to memory of 1556	1984	wscript.exe	cmd.exe
PID 1984 wrote to memory of 1144	1984	wscript.exe	Firefox.exe
PID 1984 wrote to memory of 1144	1984	wscript.exe	Firefox.exe
PID 1984 wrote to memory of 1144	1984	wscript.exe	Firefox.exe
PID 1984 wrote to memory of 1144	1984	wscript.exe	Firefox.exe
PID 1984 wrote to memory of 1144	1984	wscript.exe	Firefox.exe
PID 1984 wrote to memory of 668	1984	wscript.exe	cmd.exe
PID 1984 wrote to memory of 668	1984	wscript.exe	cmd.exe
PID 1984 wrote to memory of 668	1984	wscript.exe	cmd.exe
PID 1984 wrote to memory of 668	1984	wscript.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1400

C:\Users\Admin\AppData\Local\Temp\STD 35 GA Plan_DOCX.exe
"C:\Users\Admin\AppData\Local\Temp\STD 35 GA Plan_DOCX.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1336

C:\Users\Admin\AppData\Local\Temp\STD 35 GA Plan_DOCX.exe
"C:\Users\Admin\AppData\Local\Temp\STD 35 GA Plan_DOCX.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1180

C:\Windows\SysWOW64\wscript.exe
"C:\Windows\SysWOW64\wscript.exe"
2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- 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:1984

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\STD 35 GA Plan_DOCX.exe"
3⤵
- Deletes itself
PID:1556

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1144

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:668

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

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
\Users\Admin\AppData\Local\Temp\sqlite3.dll
Filesize
635KB

MD5
ee68b052a08fec0f574f2dae2003df27

SHA1
4fe217c85e91d3ae7c46acbc03b9ca6565a29a92

SHA256
cf5301c28275b1f04d5ebaecc7fc4ebd9ebc970e1c2c9512f5380e263bf9ddfd

SHA512
d39c9560380c8f8c0a8e15dd3c577bad6d1ffc479afb9dc81e67bc2510f61e8c9fca723c2b931065738b1f554bab73ff934e65fcf4334df1e1539ebd566dfab2

Download Submit
memory/668-81-0x0000000000000000-mapping.dmp

Download
memory/1180-68-0x0000000000430000-0x0000000000441000-memory.dmp

Filesize
68KB

Download
memory/1180-66-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1180-67-0x0000000000A30000-0x0000000000D33000-memory.dmp

Filesize
3.0MB

Download
memory/1180-60-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1180-61-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1180-64-0x000000000041F840-mapping.dmp

Download
memory/1180-63-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1336-54-0x0000000000980000-0x0000000000A30000-memory.dmp

Filesize
704KB

Download
memory/1336-59-0x0000000005030000-0x0000000005062000-memory.dmp

Filesize
200KB

Download
memory/1336-58-0x0000000005800000-0x000000000587A000-memory.dmp

Filesize
488KB

Download
memory/1336-55-0x0000000074B51000-0x0000000074B53000-memory.dmp

Filesize
8KB

Download
memory/1336-56-0x00000000005A0000-0x00000000005C0000-memory.dmp

Filesize
128KB

Download
memory/1336-57-0x0000000001FC0000-0x0000000001FCE000-memory.dmp

Filesize
56KB

Download
memory/1400-76-0x00000000049C0000-0x0000000004A89000-memory.dmp

Filesize
804KB

Download
memory/1400-69-0x0000000003BF0000-0x0000000003CF4000-memory.dmp

Filesize
1.0MB

Download
memory/1400-78-0x00000000049C0000-0x0000000004A89000-memory.dmp

Filesize
804KB

Download
memory/1556-74-0x0000000000000000-mapping.dmp

Download
memory/1984-70-0x0000000000000000-mapping.dmp

Download
memory/1984-77-0x0000000000070000-0x000000000009C000-memory.dmp

Filesize
176KB

Download
memory/1984-75-0x0000000000680000-0x0000000000710000-memory.dmp

Filesize
576KB

Download
memory/1984-73-0x00000000022A0000-0x00000000025A3000-memory.dmp

Filesize
3.0MB

Download
memory/1984-72-0x0000000000070000-0x000000000009C000-memory.dmp

Filesize
176KB

Download
memory/1984-71-0x00000000004A0000-0x00000000004C6000-memory.dmp

Filesize
152KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads