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-1-5-21-2292972927-2705560509-2768824231-1000\Control Panel\International\Geo\Nation	Invoice.exe

Loads dropped DLL 1 IoCs

Processes:

ipconfig.exe

pid process

1780 ipconfig.exe

pid	process
1780	ipconfig.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

Invoice.exeInvoice.exeipconfig.exe

description	pid	process	target process
PID 864 set thread context of 1420	864	Invoice.exe	Invoice.exe
PID 1420 set thread context of 1296	1420	Invoice.exe	Explorer.EXE
PID 1420 set thread context of 1296	1420	Invoice.exe	Explorer.EXE
PID 1780 set thread context of 1296	1780	ipconfig.exe	Explorer.EXE

Gathers network information 2 TTPs 1 IoCs
Uses commandline utility to view network configuration.

System Information Discovery
T1082

Command-Line Interface
T1059

Processes:

ipconfig.exe

pid process

1780 ipconfig.exe

pid	process
1780	ipconfig.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

ipconfig.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2292972927-2705560509-2768824231-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

Processes:

Invoice.exeipconfig.exe

pid	process
1420	Invoice.exe
1420	Invoice.exe
1420	Invoice.exe
1420	Invoice.exe
1420	Invoice.exe
1780	ipconfig.exe
1780	ipconfig.exe
1780	ipconfig.exe
1780	ipconfig.exe
1780	ipconfig.exe
1780	ipconfig.exe
1780	ipconfig.exe
1780	ipconfig.exe
1780	ipconfig.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

Invoice.exeipconfig.exe

pid process

1420 Invoice.exe
1420 Invoice.exe
1420 Invoice.exe
1420 Invoice.exe
1780 ipconfig.exe
1780 ipconfig.exe
1780 ipconfig.exe
1780 ipconfig.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Invoice.exeipconfig.exe

description pid process

Token: SeDebugPrivilege 1420 Invoice.exe
Token: SeDebugPrivilege 1780 ipconfig.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1296 Explorer.EXE
1296 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1296 Explorer.EXE
1296 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1420	Invoice.exe
Token: SeDebugPrivilege	1780	ipconfig.exe

pid	process
1296	Explorer.EXE
1296	Explorer.EXE

pid	process
1296	Explorer.EXE
1296	Explorer.EXE

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

Invoice.exeInvoice.exeipconfig.exe

description	pid	process	target process
PID 864 wrote to memory of 1420	864	Invoice.exe	Invoice.exe
PID 864 wrote to memory of 1420	864	Invoice.exe	Invoice.exe
PID 864 wrote to memory of 1420	864	Invoice.exe	Invoice.exe
PID 864 wrote to memory of 1420	864	Invoice.exe	Invoice.exe
PID 864 wrote to memory of 1420	864	Invoice.exe	Invoice.exe
PID 864 wrote to memory of 1420	864	Invoice.exe	Invoice.exe
PID 864 wrote to memory of 1420	864	Invoice.exe	Invoice.exe
PID 1420 wrote to memory of 1780	1420	Invoice.exe	ipconfig.exe
PID 1420 wrote to memory of 1780	1420	Invoice.exe	ipconfig.exe
PID 1420 wrote to memory of 1780	1420	Invoice.exe	ipconfig.exe
PID 1420 wrote to memory of 1780	1420	Invoice.exe	ipconfig.exe
PID 1780 wrote to memory of 1040	1780	ipconfig.exe	Firefox.exe
PID 1780 wrote to memory of 1040	1780	ipconfig.exe	Firefox.exe
PID 1780 wrote to memory of 1040	1780	ipconfig.exe	Firefox.exe
PID 1780 wrote to memory of 1040	1780	ipconfig.exe	Firefox.exe
PID 1780 wrote to memory of 1040	1780	ipconfig.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1296

C:\Users\Admin\AppData\Local\Temp\Invoice.exe
"C:\Users\Admin\AppData\Local\Temp\Invoice.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:864

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
- Suspicious use of WriteProcessMemory
PID:1420

C:\Windows\SysWOW64\ipconfig.exe
"C:\Windows\SysWOW64\ipconfig.exe"
4⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Gathers network information
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1780

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
5⤵
PID:1040

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\sqlite3.dll
Filesize
1.0MB

MD5
f1e5f58f9eb43ecec773acbdb410b888

SHA1
f1b8076b0bbde696694bbc0ab259a77893839464

SHA256
a15fd84ee61b54c92bb099dfb78226548f43d550c67fb6adf4cce3d064ab1c14

SHA512
0aff96430dd99bb227285fefc258014c301f85216c84e40f45702d26cdd7e77261a41fd3811d686f5fb2ee363cc651a014e8ffa339384004cece645a36486456

Download Submit
memory/864-54-0x0000000000C00000-0x0000000000CFE000-memory.dmp

Filesize
1016KB

Download
memory/864-55-0x0000000075141000-0x0000000075143000-memory.dmp

Filesize
8KB

Download
memory/864-56-0x00000000009B0000-0x00000000009CA000-memory.dmp

Filesize
104KB

Download
memory/864-57-0x0000000000940000-0x000000000094E000-memory.dmp

Filesize
56KB

Download
memory/864-58-0x0000000007FA0000-0x000000000805C000-memory.dmp

Filesize
752KB

Download
memory/864-59-0x0000000005BA0000-0x0000000005C24000-memory.dmp

Filesize
528KB

Download
memory/1296-85-0x0000000009520000-0x000000000963D000-memory.dmp

Filesize
1.1MB

Download
memory/1296-83-0x0000000009520000-0x000000000963D000-memory.dmp

Filesize
1.1MB

Download
memory/1296-74-0x0000000006A70000-0x0000000006B72000-memory.dmp

Filesize
1.0MB

Download
memory/1296-71-0x00000000068F0000-0x0000000006A6E000-memory.dmp

Filesize
1.5MB

Download
memory/1420-70-0x00000000000E0000-0x00000000000F0000-memory.dmp

Filesize
64KB

Download
memory/1420-77-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1420-69-0x00000000008A0000-0x0000000000BA3000-memory.dmp

Filesize
3.0MB

Download
memory/1420-67-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1420-66-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1420-73-0x00000000001A0000-0x00000000001B0000-memory.dmp

Filesize
64KB

Download
memory/1420-64-0x00000000004012B0-mapping.dmp

Download
memory/1420-76-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1420-60-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1420-68-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1420-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1420-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1780-81-0x0000000002190000-0x0000000002493000-memory.dmp

Filesize
3.0MB

Download
memory/1780-80-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1780-82-0x0000000001EC0000-0x0000000001F4F000-memory.dmp

Filesize
572KB

Download
memory/1780-84-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1780-79-0x0000000000480000-0x000000000048A000-memory.dmp

Filesize
40KB

Download
memory/1780-75-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads