formbook | b6a6ff003727e8fe59a6d10a4ea5fa4b066e15cd0ecba552c4d7d3d08da0d986

General

Target

Payment Swift.doc
Size

319KB
MD5

eaf353f50d090caa75e67f05393c8717
SHA1

9dcea91cea5313f75f69ad255fd919497d418904
SHA256

b6a6ff003727e8fe59a6d10a4ea5fa4b066e15cd0ecba552c4d7d3d08da0d986
SHA512

d035e065741109ace2e8f59abf5a5ab62d7fc94da64a7bd185c82f07c5bfadf364ed494c6fee6a2768ad243a6d393941ed799c24d40818b57bc28a8375e19931

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/1972-73-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1596-82-0x00000000000F0000-0x000000000011E000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow pid process

7 2000 EQNEDT32.EXE
Downloads MZ/PE file
Executes dropped EXE 2 IoCs

Processes:

prosper86441.exeprosper86441.exe

pid process

1644 prosper86441.exe
1972 prosper86441.exe
Loads dropped DLL 2 IoCs

Processes:

EQNEDT32.EXEprosper86441.exe

pid process

2000 EQNEDT32.EXE
1644 prosper86441.exe

flow	pid	process
7	2000	EQNEDT32.EXE

pid	process
1644	prosper86441.exe
1972	prosper86441.exe

pid	process
2000	EQNEDT32.EXE
1644	prosper86441.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

prosper86441.exeprosper86441.exemsiexec.exe

description	pid	process	target process
PID 1644 set thread context of 1972	1644	prosper86441.exe	prosper86441.exe
PID 1972 set thread context of 1220	1972	prosper86441.exe	Explorer.EXE
PID 1972 set thread context of 1220	1972	prosper86441.exe	Explorer.EXE
PID 1596 set thread context of 1220	1596	msiexec.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\prosper86441.exe	nsis_installer_1
\Users\Admin\AppData\Roaming\prosper86441.exe	nsis_installer_2
C:\Users\Admin\AppData\Roaming\prosper86441.exe	nsis_installer_1
C:\Users\Admin\AppData\Roaming\prosper86441.exe	nsis_installer_2
C:\Users\Admin\AppData\Roaming\prosper86441.exe	nsis_installer_1
C:\Users\Admin\AppData\Roaming\prosper86441.exe	nsis_installer_2
C:\Users\Admin\AppData\Roaming\prosper86441.exe	nsis_installer_1
C:\Users\Admin\AppData\Roaming\prosper86441.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

2000 EQNEDT32.EXE

pid	process
2000	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

WINWORD.EXE

description	ioc	process
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	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
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	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
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
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
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid process

1652 WINWORD.EXE

pid	process
1652	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

prosper86441.exemsiexec.exe

pid	process
1972	prosper86441.exe
1972	prosper86441.exe
1972	prosper86441.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe
1596	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1220 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

prosper86441.exeprosper86441.exemsiexec.exe

pid process

1644 prosper86441.exe
1972 prosper86441.exe
1972 prosper86441.exe
1972 prosper86441.exe
1972 prosper86441.exe
1596 msiexec.exe
1596 msiexec.exe

pid	process
1220	Explorer.EXE

pid	process
1644	prosper86441.exe
1972	prosper86441.exe
1972	prosper86441.exe
1972	prosper86441.exe
1972	prosper86441.exe
1596	msiexec.exe
1596	msiexec.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

Processes:

prosper86441.exeExplorer.EXEmsiexec.exe

description	pid	process
Token: SeDebugPrivilege	1972	prosper86441.exe
Token: SeShutdownPrivilege	1220	Explorer.EXE
Token: SeShutdownPrivilege	1220	Explorer.EXE
Token: SeShutdownPrivilege	1220	Explorer.EXE
Token: SeShutdownPrivilege	1220	Explorer.EXE
Token: SeShutdownPrivilege	1220	Explorer.EXE
Token: SeShutdownPrivilege	1220	Explorer.EXE
Token: SeDebugPrivilege	1596	msiexec.exe
Token: SeShutdownPrivilege	1220	Explorer.EXE
Token: SeShutdownPrivilege	1220	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1220 Explorer.EXE
1220 Explorer.EXE
1220 Explorer.EXE
1220 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1220 Explorer.EXE
1220 Explorer.EXE
1220 Explorer.EXE
1220 Explorer.EXE
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid process

1652 WINWORD.EXE
1652 WINWORD.EXE

pid	process
1220	Explorer.EXE
1220	Explorer.EXE
1220	Explorer.EXE
1220	Explorer.EXE

pid	process
1220	Explorer.EXE
1220	Explorer.EXE
1220	Explorer.EXE
1220	Explorer.EXE

pid	process
1652	WINWORD.EXE
1652	WINWORD.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

EQNEDT32.EXEprosper86441.exeExplorer.EXEmsiexec.exeWINWORD.EXE

description	pid	process	target process
PID 2000 wrote to memory of 1644	2000	EQNEDT32.EXE	prosper86441.exe
PID 2000 wrote to memory of 1644	2000	EQNEDT32.EXE	prosper86441.exe
PID 2000 wrote to memory of 1644	2000	EQNEDT32.EXE	prosper86441.exe
PID 2000 wrote to memory of 1644	2000	EQNEDT32.EXE	prosper86441.exe
PID 1644 wrote to memory of 1972	1644	prosper86441.exe	prosper86441.exe
PID 1644 wrote to memory of 1972	1644	prosper86441.exe	prosper86441.exe
PID 1644 wrote to memory of 1972	1644	prosper86441.exe	prosper86441.exe
PID 1644 wrote to memory of 1972	1644	prosper86441.exe	prosper86441.exe
PID 1644 wrote to memory of 1972	1644	prosper86441.exe	prosper86441.exe
PID 1220 wrote to memory of 1596	1220	Explorer.EXE	msiexec.exe
PID 1220 wrote to memory of 1596	1220	Explorer.EXE	msiexec.exe
PID 1220 wrote to memory of 1596	1220	Explorer.EXE	msiexec.exe
PID 1220 wrote to memory of 1596	1220	Explorer.EXE	msiexec.exe
PID 1220 wrote to memory of 1596	1220	Explorer.EXE	msiexec.exe
PID 1220 wrote to memory of 1596	1220	Explorer.EXE	msiexec.exe
PID 1220 wrote to memory of 1596	1220	Explorer.EXE	msiexec.exe
PID 1596 wrote to memory of 1996	1596	msiexec.exe	cmd.exe
PID 1596 wrote to memory of 1996	1596	msiexec.exe	cmd.exe
PID 1596 wrote to memory of 1996	1596	msiexec.exe	cmd.exe
PID 1596 wrote to memory of 1996	1596	msiexec.exe	cmd.exe
PID 1652 wrote to memory of 1840	1652	WINWORD.EXE	splwow64.exe
PID 1652 wrote to memory of 1840	1652	WINWORD.EXE	splwow64.exe
PID 1652 wrote to memory of 1840	1652	WINWORD.EXE	splwow64.exe
PID 1652 wrote to memory of 1840	1652	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:1220
- 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\Payment Swift.doc"
  2⤵
  - Drops file in Windows directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1652
- - C:\Windows\splwow64.exe
    C:\Windows\splwow64.exe 12288
    3⤵
    PID:1840
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1596
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Roaming\prosper86441.exe"
    3⤵
    PID:1996

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:2000
- C:\Users\Admin\AppData\Roaming\prosper86441.exe
  "C:\Users\Admin\AppData\Roaming\prosper86441.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1644
- - C:\Users\Admin\AppData\Roaming\prosper86441.exe
    "C:\Users\Admin\AppData\Roaming\prosper86441.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1972

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\prosper86441.exe

MD5
f6e56a72afa365ae2b4018648e048940

SHA1
9e9a454762c2ecfc6326efadd83128bf3b49aca8

SHA256
726a3798f80c7e482b512dc777bc692965136190990a5fed138934a546944121

SHA512
4836dcac298fe32f4c856749bfc2dd2dfcb69ec63724cf014c55929b11b42128cac95e69a360ced1f7d0a22f403e3ab62180de76e22c718d543a0796eada727f

Download Submit
C:\Users\Admin\AppData\Roaming\prosper86441.exe

MD5
f6e56a72afa365ae2b4018648e048940

SHA1
9e9a454762c2ecfc6326efadd83128bf3b49aca8

SHA256
726a3798f80c7e482b512dc777bc692965136190990a5fed138934a546944121

SHA512
4836dcac298fe32f4c856749bfc2dd2dfcb69ec63724cf014c55929b11b42128cac95e69a360ced1f7d0a22f403e3ab62180de76e22c718d543a0796eada727f

Download Submit
C:\Users\Admin\AppData\Roaming\prosper86441.exe

MD5
f6e56a72afa365ae2b4018648e048940

SHA1
9e9a454762c2ecfc6326efadd83128bf3b49aca8

SHA256
726a3798f80c7e482b512dc777bc692965136190990a5fed138934a546944121

SHA512
4836dcac298fe32f4c856749bfc2dd2dfcb69ec63724cf014c55929b11b42128cac95e69a360ced1f7d0a22f403e3ab62180de76e22c718d543a0796eada727f

Download Submit
\Users\Admin\AppData\Local\Temp\nss9609.tmp\tvjy7oe88s7.dll

MD5
461366c30c8d7869834ae3c80c70c831

SHA1
f87c4af01a7130dcf0b6ed060b58dcf02af15b09

SHA256
fb7d1bac5c557b31f902a51dce8ad460b0bcb41a5bf5953b4b14a0c606abb544

SHA512
cb2d3e4e418a755604c63ec5558d9cb0e49f4cdf88289a6e22630a6c217d074732ec4c8c55e780892b86c5c10e9ac33b3da34537607549d09a8f3466d56c1069

Download Submit
\Users\Admin\AppData\Roaming\prosper86441.exe

MD5
f6e56a72afa365ae2b4018648e048940

SHA1
9e9a454762c2ecfc6326efadd83128bf3b49aca8

SHA256
726a3798f80c7e482b512dc777bc692965136190990a5fed138934a546944121

SHA512
4836dcac298fe32f4c856749bfc2dd2dfcb69ec63724cf014c55929b11b42128cac95e69a360ced1f7d0a22f403e3ab62180de76e22c718d543a0796eada727f

Download Submit
memory/1220-88-0x0000000007500000-0x000000000762D000-memory.dmp

Filesize
1.2MB

Download
memory/1220-78-0x0000000004A20000-0x0000000004B29000-memory.dmp

Filesize
1.0MB

Download
memory/1220-76-0x0000000004190000-0x0000000004278000-memory.dmp

Filesize
928KB

Download
memory/1596-83-0x0000000002320000-0x0000000002623000-memory.dmp

Filesize
3.0MB

Download
memory/1596-79-0x0000000000000000-mapping.dmp

Download
memory/1596-87-0x0000000000600000-0x0000000000693000-memory.dmp

Filesize
588KB

Download
memory/1596-82-0x00000000000F0000-0x000000000011E000-memory.dmp

Filesize
184KB

Download
memory/1596-81-0x00000000005E0000-0x00000000005F4000-memory.dmp

Filesize
80KB

Download
memory/1644-65-0x0000000000000000-mapping.dmp

Download
memory/1644-72-0x00000000003D0000-0x00000000003D2000-memory.dmp

Filesize
8KB

Download
memory/1652-60-0x0000000072281000-0x0000000072284000-memory.dmp

Filesize
12KB

Download
memory/1652-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1652-61-0x000000006FD01000-0x000000006FD03000-memory.dmp

Filesize
8KB

Download
memory/1652-89-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1840-85-0x0000000000000000-mapping.dmp

Download
memory/1840-86-0x000007FEFB6A1000-0x000007FEFB6A3000-memory.dmp

Filesize
8KB

Download
memory/1972-77-0x00000000004C0000-0x00000000004D4000-memory.dmp

Filesize
80KB

Download
memory/1972-75-0x0000000000480000-0x0000000000494000-memory.dmp

Filesize
80KB

Download
memory/1972-74-0x00000000008C0000-0x0000000000BC3000-memory.dmp

Filesize
3.0MB

Download
memory/1972-70-0x000000000041EB70-mapping.dmp

Download
memory/1972-73-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1996-84-0x0000000000000000-mapping.dmp

Download
memory/2000-63-0x00000000754F1000-0x00000000754F3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads