formbook | 0ed349a732a4c26e6d9fd8d7311239bf86dc676a77ea6fe73c58a676373814a0

General

Target

Ordine di acquisto GM004868.doc
Size

572KB
MD5

8e76e36ecd9c1cf7815a895060b1faf8
SHA1

808b8c09768912bd4305904d4919489c98b75ed0
SHA256

0ed349a732a4c26e6d9fd8d7311239bf86dc676a77ea6fe73c58a676373814a0
SHA512

d7348b89c470dfad0a44b5f44c50760eb835f9bec3d865a79ff1c60e0723f7aadc3c3341819b554833cd7a3b9d8429e691c6458b232a8f698e05bc83d8f46eed

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.shoprodeovegas.com/xcl/

Decoy

sewingtherose.com

thesmartshareholder.com

afasyah.com

marolamusic.com

lookupgeorgina.com

plataforyou.com

dijcan.com

pawtyparcels.com

interprediction.com

fairerfinancehackathon.net

thehmnshop.com

jocelynlopez.com

launcheffecthouston.com

joyeveryminute.com

spyforu.com

ronerasanjuan.com

gadgetsdesi.com

nmrconsultants.com

travellpod.com

ballparksportscards.com

Signatures

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

Formbook Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1252-74-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1620-83-0x0000000000080000-0x00000000000AE000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

6 368 EQNEDT32.EXE
Executes dropped EXE 2 IoCs

Processes:

prosperf19175.exeprosperf19175.exe

pid process

432 prosperf19175.exe
1252 prosperf19175.exe
Loads dropped DLL 2 IoCs

Processes:

EQNEDT32.EXEprosperf19175.exe

pid process

368 EQNEDT32.EXE
432 prosperf19175.exe

flow	pid	process
6	368	EQNEDT32.EXE

pid	process
432	prosperf19175.exe
1252	prosperf19175.exe

pid	process
368	EQNEDT32.EXE
432	prosperf19175.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

prosperf19175.exeprosperf19175.exesvchost.exe

description	pid	process	target process
PID 432 set thread context of 1252	432	prosperf19175.exe	prosperf19175.exe
PID 1252 set thread context of 1204	1252	prosperf19175.exe	Explorer.EXE
PID 1252 set thread context of 1204	1252	prosperf19175.exe	Explorer.EXE
PID 1620 set thread context of 1204	1620	svchost.exe	Explorer.EXE

Drops file in Windows directory 1 IoCs

Processes:

WINWORD.EXE

description ioc process

File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.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:\Windows\Debug\WIA\wiatrace.log	WINWORD.EXE

NSIS installer 8 IoCs

installer

Processes:

resource	yara_rule
\Users\Admin\AppData\Roaming\prosperf19175.exe	nsis_installer_1
\Users\Admin\AppData\Roaming\prosperf19175.exe	nsis_installer_2
C:\Users\Admin\AppData\Roaming\prosperf19175.exe	nsis_installer_1
C:\Users\Admin\AppData\Roaming\prosperf19175.exe	nsis_installer_2
C:\Users\Admin\AppData\Roaming\prosperf19175.exe	nsis_installer_1
C:\Users\Admin\AppData\Roaming\prosperf19175.exe	nsis_installer_2
C:\Users\Admin\AppData\Roaming\prosperf19175.exe	nsis_installer_1
C:\Users\Admin\AppData\Roaming\prosperf19175.exe	nsis_installer_2

Office loads VBA resources, possible macro or embedded object present
Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
exploit

Exploitation for Client Execution
T1203

Processes:

EQNEDT32.EXE

pid process

368 EQNEDT32.EXE

pid	process
368	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	WINWORD.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt	WINWORD.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	WINWORD.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1060 WINWORD.EXE

pid	process
1060	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

prosperf19175.exesvchost.exe

pid	process
1252	prosperf19175.exe
1252	prosperf19175.exe
1252	prosperf19175.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe
1620	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

prosperf19175.exeprosperf19175.exesvchost.exe

pid process

432 prosperf19175.exe
1252 prosperf19175.exe
1252 prosperf19175.exe
1252 prosperf19175.exe
1252 prosperf19175.exe
1620 svchost.exe
1620 svchost.exe

pid	process
1204	Explorer.EXE

pid	process
432	prosperf19175.exe
1252	prosperf19175.exe
1252	prosperf19175.exe
1252	prosperf19175.exe
1252	prosperf19175.exe
1620	svchost.exe
1620	svchost.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

prosperf19175.exeExplorer.EXEsvchost.exe

description	pid	process
Token: SeDebugPrivilege	1252	prosperf19175.exe
Token: SeShutdownPrivilege	1204	Explorer.EXE
Token: SeShutdownPrivilege	1204	Explorer.EXE
Token: SeShutdownPrivilege	1204	Explorer.EXE
Token: SeShutdownPrivilege	1204	Explorer.EXE
Token: SeDebugPrivilege	1620	svchost.exe
Token: SeShutdownPrivilege	1204	Explorer.EXE
Token: SeShutdownPrivilege	1204	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE
1204 Explorer.EXE
1204 Explorer.EXE
1204 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1204 Explorer.EXE
1204 Explorer.EXE
1204 Explorer.EXE
1204 Explorer.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

1060 WINWORD.EXE
1060 WINWORD.EXE

pid	process
1204	Explorer.EXE
1204	Explorer.EXE
1204	Explorer.EXE
1204	Explorer.EXE

pid	process
1204	Explorer.EXE
1204	Explorer.EXE
1204	Explorer.EXE
1204	Explorer.EXE

pid	process
1060	WINWORD.EXE
1060	WINWORD.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

EQNEDT32.EXEprosperf19175.exeExplorer.EXEsvchost.exeWINWORD.EXE

description	pid	process	target process
PID 368 wrote to memory of 432	368	EQNEDT32.EXE	prosperf19175.exe
PID 368 wrote to memory of 432	368	EQNEDT32.EXE	prosperf19175.exe
PID 368 wrote to memory of 432	368	EQNEDT32.EXE	prosperf19175.exe
PID 368 wrote to memory of 432	368	EQNEDT32.EXE	prosperf19175.exe
PID 432 wrote to memory of 1252	432	prosperf19175.exe	prosperf19175.exe
PID 432 wrote to memory of 1252	432	prosperf19175.exe	prosperf19175.exe
PID 432 wrote to memory of 1252	432	prosperf19175.exe	prosperf19175.exe
PID 432 wrote to memory of 1252	432	prosperf19175.exe	prosperf19175.exe
PID 432 wrote to memory of 1252	432	prosperf19175.exe	prosperf19175.exe
PID 1204 wrote to memory of 1620	1204	Explorer.EXE	svchost.exe
PID 1204 wrote to memory of 1620	1204	Explorer.EXE	svchost.exe
PID 1204 wrote to memory of 1620	1204	Explorer.EXE	svchost.exe
PID 1204 wrote to memory of 1620	1204	Explorer.EXE	svchost.exe
PID 1620 wrote to memory of 1436	1620	svchost.exe	cmd.exe
PID 1620 wrote to memory of 1436	1620	svchost.exe	cmd.exe
PID 1620 wrote to memory of 1436	1620	svchost.exe	cmd.exe
PID 1620 wrote to memory of 1436	1620	svchost.exe	cmd.exe
PID 1060 wrote to memory of 1140	1060	WINWORD.EXE	splwow64.exe
PID 1060 wrote to memory of 1140	1060	WINWORD.EXE	splwow64.exe
PID 1060 wrote to memory of 1140	1060	WINWORD.EXE	splwow64.exe
PID 1060 wrote to memory of 1140	1060	WINWORD.EXE	splwow64.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1204

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Ordine di acquisto GM004868.doc"
2⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1060

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
3⤵
PID:1140

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\SysWOW64\svchost.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1620

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Roaming\prosperf19175.exe"
3⤵
PID:1436

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:368

C:\Users\Admin\AppData\Roaming\prosperf19175.exe
"C:\Users\Admin\AppData\Roaming\prosperf19175.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:432

C:\Users\Admin\AppData\Roaming\prosperf19175.exe
"C:\Users\Admin\AppData\Roaming\prosperf19175.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1252

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Exploitation for Client Execution

1

T1203

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\prosperf19175.exe
MD5
9ec6e392fa3c0d697dcf073de9488ff2

SHA1
ef0e366f046f8edf28771ad6727fe6e7f0063ae6

SHA256
6f4fbab85c58d588450bc856ceff3894645e0033b4c4d2684184a8430c01daa4

SHA512
b4be3f3fc3a16ac01b89e61c1083deb77c3cd1281c188b6156fd59a4b8ad5f3cab6f8087c056811c38fa4f322ab9d6dc5209f73c52cb3e19ac60358a972eedaa

Download Submit
C:\Users\Admin\AppData\Roaming\prosperf19175.exe
MD5
9ec6e392fa3c0d697dcf073de9488ff2

SHA1
ef0e366f046f8edf28771ad6727fe6e7f0063ae6

SHA256
6f4fbab85c58d588450bc856ceff3894645e0033b4c4d2684184a8430c01daa4

SHA512
b4be3f3fc3a16ac01b89e61c1083deb77c3cd1281c188b6156fd59a4b8ad5f3cab6f8087c056811c38fa4f322ab9d6dc5209f73c52cb3e19ac60358a972eedaa

Download Submit
C:\Users\Admin\AppData\Roaming\prosperf19175.exe
MD5
9ec6e392fa3c0d697dcf073de9488ff2

SHA1
ef0e366f046f8edf28771ad6727fe6e7f0063ae6

SHA256
6f4fbab85c58d588450bc856ceff3894645e0033b4c4d2684184a8430c01daa4

SHA512
b4be3f3fc3a16ac01b89e61c1083deb77c3cd1281c188b6156fd59a4b8ad5f3cab6f8087c056811c38fa4f322ab9d6dc5209f73c52cb3e19ac60358a972eedaa

Download Submit
\Users\Admin\AppData\Local\Temp\nsdD4BF.tmp\01k5inl603ep7.dll
MD5
c9937b8f70fda5cb3d8e2cc955651d83

SHA1
3055287f8b84936e3e8969903cde5fbdb9ca7bfa

SHA256
9e4eb9092ebe0889cd9660c647159a73e9414c0c6705f00cea2c175f5a3774e1

SHA512
6f488b0415f0ae96ffcc9dcfe88e6b4194881aa5e985e6b17de806e00d817b4d5aee5fb83ceb71f7a64d31faf06065ee1caddfaad3019826a047b5b2b371cb44

Download Submit
\Users\Admin\AppData\Roaming\prosperf19175.exe
MD5
9ec6e392fa3c0d697dcf073de9488ff2

SHA1
ef0e366f046f8edf28771ad6727fe6e7f0063ae6

SHA256
6f4fbab85c58d588450bc856ceff3894645e0033b4c4d2684184a8430c01daa4

SHA512
b4be3f3fc3a16ac01b89e61c1083deb77c3cd1281c188b6156fd59a4b8ad5f3cab6f8087c056811c38fa4f322ab9d6dc5209f73c52cb3e19ac60358a972eedaa

Download Submit
memory/368-63-0x0000000075C31000-0x0000000075C33000-memory.dmp

Filesize
8KB

Download
memory/432-71-0x0000000002A11000-0x0000000002A13000-memory.dmp

Filesize
8KB

Download
memory/432-65-0x0000000000000000-mapping.dmp

Download
memory/432-70-0x0000000002A10000-0x0000000002A11000-memory.dmp

Filesize
4KB

Download
memory/1060-61-0x000000006FF11000-0x000000006FF13000-memory.dmp

Filesize
8KB

Download
memory/1060-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1060-89-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1060-60-0x0000000072491000-0x0000000072494000-memory.dmp

Filesize
12KB

Download
memory/1140-86-0x000007FEFBB31000-0x000007FEFBB33000-memory.dmp

Filesize
8KB

Download
memory/1140-85-0x0000000000000000-mapping.dmp

Download
memory/1204-79-0x0000000004870000-0x0000000004938000-memory.dmp

Filesize
800KB

Download
memory/1204-88-0x0000000008000000-0x000000000813C000-memory.dmp

Filesize
1.2MB

Download
memory/1204-77-0x0000000007500000-0x0000000007630000-memory.dmp

Filesize
1.2MB

Download
memory/1252-75-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Filesize
3.0MB

Download
memory/1252-78-0x0000000000390000-0x00000000003A4000-memory.dmp

Filesize
80KB

Download
memory/1252-76-0x0000000000350000-0x0000000000364000-memory.dmp

Filesize
80KB

Download
memory/1252-74-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1252-72-0x000000000041EB70-mapping.dmp

Download
memory/1436-81-0x0000000000000000-mapping.dmp

Download
memory/1620-80-0x0000000000000000-mapping.dmp

Download
memory/1620-82-0x0000000000C90000-0x0000000000C98000-memory.dmp

Filesize
32KB

Download
memory/1620-83-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/1620-84-0x0000000000710000-0x0000000000A13000-memory.dmp

Filesize
3.0MB

Download
memory/1620-87-0x0000000000520000-0x00000000005B3000-memory.dmp

Filesize
588KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads