formbook | 443ffe0efb43ac5c04e23e749b2908a8e723462f409208e0f4cf35046e3b129d

Analysis

max time kernel
152s
max time network
155s
platform
windows7_x64
resource
win7v20210408
submitted
27/09/2021, 20:19

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General

Target
PO.doc
Size 13KB
Sample210927-y3475aaba2
SHA256 443ffe0efb43ac5c04e23e749b2908a8e723462f409208e0f4cf35046e3b129d
MD5 5be61511dab1f4f76366f52ca8fec8b1
SHA1 70a6dd35d6da873242e3c56ff86f000c78614a1f
SHA512 bd63c51ff9033fd445445dde368b8c2753b82dce3f109125ce7045c67f6834b445e70c23d8c0ab0f6e13bf3588123e22ebbdc6001da8e58e8422188dcb49343e
MD5 SHA1 SHA512

Score

10^/10

formbook if60 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

Campaign

if60

http://www.handelsbetriebposavec.com/if60/

Decoy

babyjames.space
dtjug.com
bhagteri.com
havplan.com
gentlesuccess.net
negativeminus.com
utesm.com
ngomen.online
abohemianeducation.com
hyper-quote.com
poseidonflooring.com
theshopdental.com
consumelocaloficial.com
tineue.com
traerpolio.com
somnambulantfarms.com
sugarhillclassiccars.com
brasseriedufayard.com
replacerglass.net
lazyguysmarketing.com
audiofactaesthetic.com
14551bercaw.com
piaamsterdam.com
coolkidssale.com
advikaa.com
suamui.net
19820907.com
ankibe.com
barrelandlens.com
personowner.guru
gigexworld.com
visionandcourage.com
livelyselfcare.com
hellohomeowner.com
bestwazifaforloveback.com
dyvikapeel.com
ignitemyboiler.com
photosbyamandajdaniels.com
sofuery.com
rawimage.net
outtact.com
tomura-dc.com
tkachovagv.com
theheavymental.com
interfaceprosthetics.com
publicpod.net
investotbank.com
fishguano.com
livetvchannels.xyz
trendinggk.com
adlun.com
studyhandbook.com
cardinal.moe
urbantennis.info
jsbr.online
simplyforus.com
keyleadhealth.com
aliltasteofnewyork.com
usdigipro.com
debbielin.com
9921.xyz
watdomenrendi05.com
asustech.net
rm-elektrotechnik.gmbh

Signatures

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

Formbook Payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/1928-78-0x000000000041F180-mapping.dmp	formbook
behavioral1/memory/1928-77-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1116-88-0x00000000001D0000-0x00000000001FF000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	1968	EQNEDT32.EXE

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
1936	ibefrankhq4862.exe
1928	ibefrankhq4862.exe

Loads dropped DLL 1 IoCs

pid	Process
1968	EQNEDT32.EXE

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 1936 set thread context of 1928	1936	ibefrankhq4862.exe	34
PID 1928 set thread context of 1352	1928	ibefrankhq4862.exe	13
PID 1928 set thread context of 1352	1928	ibefrankhq4862.exe	13
PID 1116 set thread context of 1352	1116	netsh.exe	13

Drops file in Windows directory 1 IoCs

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

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

pid	Process
1968	EQNEDT32.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

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\Se&nd to OneNote	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 (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\Toolbar	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\MenuExt\E&xport to Microsoft Excel	WINWORD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1088	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
1928	ibefrankhq4862.exe
1928	ibefrankhq4862.exe
1928	ibefrankhq4862.exe
1116	netsh.exe
1116	netsh.exe
1116	netsh.exe
1116	netsh.exe
1116	netsh.exe
1116	netsh.exe
1116	netsh.exe
1116	netsh.exe
1116	netsh.exe
1116	netsh.exe
1116	netsh.exe
1116	netsh.exe
1116	netsh.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1352	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1928	ibefrankhq4862.exe
1928	ibefrankhq4862.exe
1928	ibefrankhq4862.exe
1928	ibefrankhq4862.exe
1116	netsh.exe
1116	netsh.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	1928	ibefrankhq4862.exe
Token: SeDebugPrivilege	1116	netsh.exe
Token: SeShutdownPrivilege	1352	Explorer.EXE
Token: SeShutdownPrivilege	1352	Explorer.EXE
Token: SeShutdownPrivilege	1352	Explorer.EXE
Token: SeShutdownPrivilege	1352	Explorer.EXE
Token: SeShutdownPrivilege	1352	Explorer.EXE

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
1352	Explorer.EXE
1352	Explorer.EXE
1352	Explorer.EXE
1352	Explorer.EXE
1352	Explorer.EXE
1352	Explorer.EXE

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
1352	Explorer.EXE
1352	Explorer.EXE
1352	Explorer.EXE
1352	Explorer.EXE
1352	Explorer.EXE
1352	Explorer.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1088	WINWORD.EXE
1088	WINWORD.EXE

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 1936	1968	EQNEDT32.EXE	28
PID 1968 wrote to memory of 1936	1968	EQNEDT32.EXE	28
PID 1968 wrote to memory of 1936	1968	EQNEDT32.EXE	28
PID 1968 wrote to memory of 1936	1968	EQNEDT32.EXE	28
PID 1088 wrote to memory of 1540	1088	WINWORD.EXE	31
PID 1088 wrote to memory of 1540	1088	WINWORD.EXE	31
PID 1088 wrote to memory of 1540	1088	WINWORD.EXE	31
PID 1088 wrote to memory of 1540	1088	WINWORD.EXE	31
PID 1936 wrote to memory of 1928	1936	ibefrankhq4862.exe	34
PID 1936 wrote to memory of 1928	1936	ibefrankhq4862.exe	34
PID 1936 wrote to memory of 1928	1936	ibefrankhq4862.exe	34
PID 1936 wrote to memory of 1928	1936	ibefrankhq4862.exe	34
PID 1936 wrote to memory of 1928	1936	ibefrankhq4862.exe	34
PID 1936 wrote to memory of 1928	1936	ibefrankhq4862.exe	34
PID 1936 wrote to memory of 1928	1936	ibefrankhq4862.exe	34
PID 1352 wrote to memory of 1116	1352	Explorer.EXE	36
PID 1352 wrote to memory of 1116	1352	Explorer.EXE	36
PID 1352 wrote to memory of 1116	1352	Explorer.EXE	36
PID 1352 wrote to memory of 1116	1352	Explorer.EXE	36
PID 1116 wrote to memory of 1684	1116	netsh.exe	37
PID 1116 wrote to memory of 1684	1116	netsh.exe	37
PID 1116 wrote to memory of 1684	1116	netsh.exe	37
PID 1116 wrote to memory of 1684	1116	netsh.exe	37

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:1352
- 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\PO.doc"
  2⤵
  - Drops file in Windows directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1088
- - C:\Windows\splwow64.exe
    C:\Windows\splwow64.exe 12288
    3⤵
    PID:1540
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:2000
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\SysWOW64\netsh.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1116
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Roaming\ibefrankhq4862.exe"
    3⤵
    PID:1684

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:1968
- C:\Users\Admin\AppData\Roaming\ibefrankhq4862.exe
  "C:\Users\Admin\AppData\Roaming\ibefrankhq4862.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1936
- - C:\Users\Admin\AppData\Roaming\ibefrankhq4862.exe
    "C:\Users\Admin\AppData\Roaming\ibefrankhq4862.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1928

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Exploitation for Client Execution

T1203

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1088-63-0x0000000075DA1000-0x0000000075DA3000-memory.dmp

Download

memory/1088-92-0x000000005FFF0000-0x0000000060000000-memory.dmp

Download

memory/1088-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Download

memory/1088-61-0x0000000070831000-0x0000000070833000-memory.dmp

Download

memory/1088-60-0x0000000072DB1000-0x0000000072DB4000-memory.dmp

Download

memory/1116-90-0x0000000000E10000-0x0000000000EA3000-memory.dmp

Download

memory/1116-88-0x00000000001D0000-0x00000000001FF000-memory.dmp

Download

memory/1116-89-0x0000000000B00000-0x0000000000E03000-memory.dmp

Download

memory/1116-87-0x0000000001100000-0x000000000111B000-memory.dmp

Download

memory/1352-84-0x0000000006C50000-0x0000000006DB9000-memory.dmp

Download

memory/1352-91-0x0000000006DC0000-0x0000000006EDA000-memory.dmp

Download

memory/1352-82-0x0000000006B40000-0x0000000006C48000-memory.dmp

Download

memory/1540-73-0x000007FEFC1D1000-0x000007FEFC1D3000-memory.dmp

Download

memory/1928-77-0x0000000000400000-0x000000000042F000-memory.dmp

Download

memory/1928-81-0x0000000000140000-0x0000000000154000-memory.dmp

Download

memory/1928-80-0x0000000000A20000-0x0000000000D23000-memory.dmp

Download

memory/1928-83-0x00000000001E0000-0x00000000001F4000-memory.dmp

Download

memory/1936-74-0x0000000000580000-0x0000000000587000-memory.dmp

Download

memory/1936-75-0x0000000005E90000-0x0000000005EF4000-memory.dmp

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memory/1936-71-0x0000000004D80000-0x0000000004D81000-memory.dmp

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memory/1936-69-0x00000000011C0000-0x00000000011C1000-memory.dmp

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memory/1936-76-0x00000000009F0000-0x0000000000A24000-memory.dmp

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