formbook | b747df969c4c80638e92b68759a8ced53c3d14bf705ad0fece792a566c9f3de9

General

Target

Invoice.exe
Size

993KB
MD5

6f4d64fcfbc82b91eb1f5e9fcffd15d3
SHA1

1ebe973942db3da29de1dc292b8a0c8601f1e7a0
SHA256

b747df969c4c80638e92b68759a8ced53c3d14bf705ad0fece792a566c9f3de9
SHA512

073b24ff9c67c8005419678674f2aa79b72a38566a5496023def857379a7a2b8e4468d3f2803da81900eb3c8d80809e6d9a20fea2ef9c7a94f726f27cabc038c
SSDEEP

24576:LIfkZ8IvMSd+WmvcGi+Dgr1hJsOSt3RpLJjpF:LNhvgOGNDO7Hyp

Score

10^/10

formbook wu27 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

wu27

Decoy

69/AbbgufRx7loCQ5G4WYQ==

uydiDFvHsFxlIrdq

NBlmCe8ii+DEa2ye5G4WYQ==

LicGnHCl/UZ2UMg=

e2lQ8e1lsXvAeX+U5G4WYQ==

2bF/M54rOGusdYqc5G4WYQ==

mQLidD9i82JIsrqysw==

ZdlDYrcsl/L9eH+U5G4WYQ==

80ucyjCJdqXkcNI=

/eg6aKbVvNkwOcxzZyAx3cCTN5E=

lflaF0MvE+fHXoWmrg==

qRfykIXbxMkND1kwe3I=

s6iSNSVOMwnpvFDxdFLlOfqBMw==

imkLObSlIdc=

oBUBm36yNaZ99JYxenA=

ngFE7+IP8Te6N75o

O6Htl8Oyjb0Msrqysw==

f4JgCEnC0LEC9w==

9+dNeq/hVxaAhxzT1pbgzZ2mb3Nf

980jQpYF3y1wMomLfWU=

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
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:

Invoice.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Control Panel\International\Geo\Nation Invoice.exe
Loads dropped DLL 1 IoCs

Processes:

help.exe

pid process

1540 help.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Control Panel\International\Geo\Nation	Invoice.exe

pid	process
1540	help.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Invoice.exeInvoice.exehelp.exe

description	pid	process	target process
PID 1284 set thread context of 1720	1284	Invoice.exe	Invoice.exe
PID 1720 set thread context of 1200	1720	Invoice.exe	Explorer.EXE
PID 1540 set thread context of 1200	1540	help.exe	Explorer.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-1-5-21-4063495947-34355257-727531523-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	help.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

Invoice.exeInvoice.exehelp.exe

pid	process
1284	Invoice.exe
1720	Invoice.exe
1720	Invoice.exe
1720	Invoice.exe
1720	Invoice.exe
1540	help.exe
1540	help.exe
1540	help.exe
1540	help.exe
1540	help.exe
1540	help.exe
1540	help.exe
1540	help.exe
1540	help.exe
1540	help.exe
1540	help.exe
1540	help.exe
1540	help.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

Invoice.exehelp.exe

pid process

1720 Invoice.exe
1720 Invoice.exe
1720 Invoice.exe
1540 help.exe
1540 help.exe
1540 help.exe
1540 help.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Invoice.exeInvoice.exehelp.exe

description pid process

Token: SeDebugPrivilege 1284 Invoice.exe
Token: SeDebugPrivilege 1720 Invoice.exe
Token: SeDebugPrivilege 1540 help.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
1200 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1200 Explorer.EXE
1200 Explorer.EXE

pid	process
1200	Explorer.EXE

pid	process
1720	Invoice.exe
1720	Invoice.exe
1720	Invoice.exe
1540	help.exe
1540	help.exe
1540	help.exe
1540	help.exe

description	pid	process
Token: SeDebugPrivilege	1284	Invoice.exe
Token: SeDebugPrivilege	1720	Invoice.exe
Token: SeDebugPrivilege	1540	help.exe

pid	process
1200	Explorer.EXE
1200	Explorer.EXE

pid	process
1200	Explorer.EXE
1200	Explorer.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

Invoice.exeExplorer.EXEhelp.exe

description	pid	process	target process
PID 1284 wrote to memory of 268	1284	Invoice.exe	Invoice.exe
PID 1284 wrote to memory of 268	1284	Invoice.exe	Invoice.exe
PID 1284 wrote to memory of 268	1284	Invoice.exe	Invoice.exe
PID 1284 wrote to memory of 268	1284	Invoice.exe	Invoice.exe
PID 1284 wrote to memory of 1720	1284	Invoice.exe	Invoice.exe
PID 1284 wrote to memory of 1720	1284	Invoice.exe	Invoice.exe
PID 1284 wrote to memory of 1720	1284	Invoice.exe	Invoice.exe
PID 1284 wrote to memory of 1720	1284	Invoice.exe	Invoice.exe
PID 1284 wrote to memory of 1720	1284	Invoice.exe	Invoice.exe
PID 1284 wrote to memory of 1720	1284	Invoice.exe	Invoice.exe
PID 1284 wrote to memory of 1720	1284	Invoice.exe	Invoice.exe
PID 1200 wrote to memory of 1540	1200	Explorer.EXE	help.exe
PID 1200 wrote to memory of 1540	1200	Explorer.EXE	help.exe
PID 1200 wrote to memory of 1540	1200	Explorer.EXE	help.exe
PID 1200 wrote to memory of 1540	1200	Explorer.EXE	help.exe
PID 1540 wrote to memory of 1092	1540	help.exe	Firefox.exe
PID 1540 wrote to memory of 1092	1540	help.exe	Firefox.exe
PID 1540 wrote to memory of 1092	1540	help.exe	Firefox.exe
PID 1540 wrote to memory of 1092	1540	help.exe	Firefox.exe
PID 1540 wrote to memory of 1092	1540	help.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1200

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1284

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
3⤵
PID:268

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1720

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1712

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2020

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1372

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:584

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:1564

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1384

C:\Windows\SysWOW64\help.exe
"C:\Windows\SysWOW64\help.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1540

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1092

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\sqlite3.dll
Filesize
807KB

MD5
16a1612789dc9063ebea1cb55433b45b

SHA1
438fde2939bbb9b5b437f64f21c316c17ce4a7f6

SHA256
6deaec2f96c8a1c20698a93ddd468d5447b55ac426dc381eef5d91b19953bb7b

SHA512
d727ce8cd793c09a8688accb7a2eb5d8f84cc198b8e9d51c21e2dfb11d850f3ac64a58d07ff7fe9d1a2fdb613567e4790866c08a423176216ff310bf24a5a7e3

Download Submit
memory/1200-71-0x0000000007B00000-0x0000000007C09000-memory.dmp

Filesize
1.0MB

Download
memory/1200-77-0x000000000A530000-0x000000000A691000-memory.dmp

Filesize
1.4MB

Download
memory/1200-80-0x000000000A530000-0x000000000A691000-memory.dmp

Filesize
1.4MB

Download
memory/1284-58-0x0000000007DE0000-0x0000000007E9C000-memory.dmp

Filesize
752KB

Download
memory/1284-59-0x0000000005E50000-0x0000000005ED4000-memory.dmp

Filesize
528KB

Download
memory/1284-54-0x0000000001370000-0x000000000146E000-memory.dmp

Filesize
1016KB

Download
memory/1284-57-0x00000000008F0000-0x00000000008FE000-memory.dmp

Filesize
56KB

Download
memory/1284-56-0x0000000000730000-0x000000000074A000-memory.dmp

Filesize
104KB

Download
memory/1284-55-0x00000000762E1000-0x00000000762E3000-memory.dmp

Filesize
8KB

Download
memory/1540-72-0x0000000000000000-mapping.dmp

Download
memory/1540-78-0x00000000000D0000-0x00000000000FD000-memory.dmp

Filesize
180KB

Download
memory/1540-76-0x00000000006C0000-0x000000000074F000-memory.dmp

Filesize
572KB

Download
memory/1540-75-0x0000000000850000-0x0000000000B53000-memory.dmp

Filesize
3.0MB

Download
memory/1540-74-0x00000000000D0000-0x00000000000FD000-memory.dmp

Filesize
180KB

Download
memory/1540-73-0x0000000000110000-0x0000000000116000-memory.dmp

Filesize
24KB

Download
memory/1720-60-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1720-70-0x0000000000150000-0x0000000000160000-memory.dmp

Filesize
64KB

Download
memory/1720-69-0x0000000000930000-0x0000000000C33000-memory.dmp

Filesize
3.0MB

Download
memory/1720-68-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1720-67-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1720-66-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1720-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1720-64-0x00000000004012B0-mapping.dmp

Download
memory/1720-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads