formbook | 2dfd64c86cfb81ed8a280b74e6e7b244a8a98d3788c8c552266ddd5327e4f055

Analysis

max time kernel
153s
max time network
164s
platform
windows7_x64
resource
win7v20210408
submitted
28/09/2021, 10:20

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General

Target
PO.doc
Size 19KB
Sample210928-mc8bbabeg6
SHA256 2dfd64c86cfb81ed8a280b74e6e7b244a8a98d3788c8c552266ddd5327e4f055
MD5 601260b52c23f2be80998a22b2fc77dd
SHA1 e4fd634040abd4f6b58aa7efe8fb59f7e64a395f
SHA512 d8beacb0e01df26d41812d4152ff8afe46c25e620d200af0e9d6a27b6f89cd4dc915d77ca2f4f3e04dc78ff43192a4d5b5e52674eef4a000a0cc35dc4ef0df22
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/1940-78-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1940-79-0x000000000041F180-mapping.dmp	formbook
behavioral1/memory/1772-88-0x0000000000110000-0x000000000013F000-memory.dmp	formbook

Blocklisted process makes network request 1 IoCs

flow	pid	Process
6	1536	EQNEDT32.EXE

Downloads MZ/PE file

Executes dropped EXE 3 IoCs

pid	Process
1616	ibeframnk863.exe
1028	ibeframnk863.exe
1940	ibeframnk863.exe

Loads dropped DLL 1 IoCs

pid	Process
1536	EQNEDT32.EXE

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1616 set thread context of 1940	1616	ibeframnk863.exe	35
PID 1940 set thread context of 1196	1940	ibeframnk863.exe	12
PID 1772 set thread context of 1196	1772	msiexec.exe	12

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
1536	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\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
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 (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	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\Toolbar	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1260	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 21 IoCs

pid	Process
1616	ibeframnk863.exe
1616	ibeframnk863.exe
1940	ibeframnk863.exe
1940	ibeframnk863.exe
1772	msiexec.exe
1772	msiexec.exe
1772	msiexec.exe
1772	msiexec.exe
1772	msiexec.exe
1772	msiexec.exe
1772	msiexec.exe
1772	msiexec.exe
1772	msiexec.exe
1772	msiexec.exe
1772	msiexec.exe
1772	msiexec.exe
1772	msiexec.exe
1772	msiexec.exe
1772	msiexec.exe
1772	msiexec.exe
1772	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1196	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1940	ibeframnk863.exe
1940	ibeframnk863.exe
1940	ibeframnk863.exe
1772	msiexec.exe
1772	msiexec.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1616	ibeframnk863.exe
Token: SeDebugPrivilege	1940	ibeframnk863.exe
Token: SeDebugPrivilege	1772	msiexec.exe
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1260	WINWORD.EXE
1260	WINWORD.EXE

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1536 wrote to memory of 1616	1536	EQNEDT32.EXE	30
PID 1536 wrote to memory of 1616	1536	EQNEDT32.EXE	30
PID 1536 wrote to memory of 1616	1536	EQNEDT32.EXE	30
PID 1536 wrote to memory of 1616	1536	EQNEDT32.EXE	30
PID 1260 wrote to memory of 1264	1260	WINWORD.EXE	33
PID 1260 wrote to memory of 1264	1260	WINWORD.EXE	33
PID 1260 wrote to memory of 1264	1260	WINWORD.EXE	33
PID 1260 wrote to memory of 1264	1260	WINWORD.EXE	33
PID 1616 wrote to memory of 1028	1616	ibeframnk863.exe	34
PID 1616 wrote to memory of 1028	1616	ibeframnk863.exe	34
PID 1616 wrote to memory of 1028	1616	ibeframnk863.exe	34
PID 1616 wrote to memory of 1028	1616	ibeframnk863.exe	34
PID 1616 wrote to memory of 1940	1616	ibeframnk863.exe	35
PID 1616 wrote to memory of 1940	1616	ibeframnk863.exe	35
PID 1616 wrote to memory of 1940	1616	ibeframnk863.exe	35
PID 1616 wrote to memory of 1940	1616	ibeframnk863.exe	35
PID 1616 wrote to memory of 1940	1616	ibeframnk863.exe	35
PID 1616 wrote to memory of 1940	1616	ibeframnk863.exe	35
PID 1616 wrote to memory of 1940	1616	ibeframnk863.exe	35
PID 1196 wrote to memory of 1772	1196	Explorer.EXE	36
PID 1196 wrote to memory of 1772	1196	Explorer.EXE	36
PID 1196 wrote to memory of 1772	1196	Explorer.EXE	36
PID 1196 wrote to memory of 1772	1196	Explorer.EXE	36
PID 1196 wrote to memory of 1772	1196	Explorer.EXE	36
PID 1196 wrote to memory of 1772	1196	Explorer.EXE	36
PID 1196 wrote to memory of 1772	1196	Explorer.EXE	36
PID 1772 wrote to memory of 1336	1772	msiexec.exe	37
PID 1772 wrote to memory of 1336	1772	msiexec.exe	37
PID 1772 wrote to memory of 1336	1772	msiexec.exe	37
PID 1772 wrote to memory of 1336	1772	msiexec.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:1196
- 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:1260
- - C:\Windows\splwow64.exe
    C:\Windows\splwow64.exe 12288
    3⤵
    PID:1264
- 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:1772
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Roaming\ibeframnk863.exe"
    3⤵
    PID:1336

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:1536
- C:\Users\Admin\AppData\Roaming\ibeframnk863.exe
  "C:\Users\Admin\AppData\Roaming\ibeframnk863.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1616
- - C:\Users\Admin\AppData\Roaming\ibeframnk863.exe
    "C:\Users\Admin\AppData\Roaming\ibeframnk863.exe"
    3⤵
    - Executes dropped EXE
    PID:1028
- - C:\Users\Admin\AppData\Roaming\ibeframnk863.exe
    "C:\Users\Admin\AppData\Roaming\ibeframnk863.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1940

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/1196-83-0x0000000004A60000-0x0000000004BFA000-memory.dmp

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memory/1196-91-0x0000000006A40000-0x0000000006B66000-memory.dmp

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memory/1260-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

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memory/1260-63-0x0000000075B31000-0x0000000075B33000-memory.dmp

Download

memory/1260-92-0x000000005FFF0000-0x0000000060000000-memory.dmp

Download

memory/1260-60-0x0000000072E91000-0x0000000072E94000-memory.dmp

Download

memory/1260-61-0x0000000070911000-0x0000000070913000-memory.dmp

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memory/1264-74-0x000007FEFC391000-0x000007FEFC393000-memory.dmp

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memory/1616-72-0x0000000000470000-0x000000000047E000-memory.dmp

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memory/1616-76-0x00000000006E0000-0x0000000000711000-memory.dmp

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memory/1616-69-0x00000000001D0000-0x00000000001D1000-memory.dmp

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memory/1616-71-0x0000000000620000-0x0000000000621000-memory.dmp

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memory/1616-75-0x00000000050E0000-0x0000000005141000-memory.dmp

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memory/1772-89-0x0000000002120000-0x0000000002423000-memory.dmp

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memory/1772-87-0x0000000000610000-0x0000000000624000-memory.dmp

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memory/1772-88-0x0000000000110000-0x000000000013F000-memory.dmp

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memory/1772-90-0x0000000002050000-0x00000000020E3000-memory.dmp

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memory/1940-82-0x00000000003D0000-0x00000000003E4000-memory.dmp

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memory/1940-81-0x0000000000890000-0x0000000000B93000-memory.dmp

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memory/1940-78-0x0000000000400000-0x000000000042F000-memory.dmp

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