formbook | 29597c03eed30fc82c0cf555186e218deaf6d32f7a96b9ae0636185da6b664bc

General

Target
3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe
Size 252KB
Sample240513-1dra3sfa76
SHA256 29597c03eed30fc82c0cf555186e218deaf6d32f7a96b9ae0636185da6b664bc
MD5 3ca6adb2c55147131eb87751eba66b89
SHA1 282f6711e594272f30eb613e007c2831d1b6202e
SHA512 e66339b52168d68e3b43552e0059b3ec3903c879ec12676915ee2a719061713b5748399a7f5aeabee4aa7ee8089b42cb77aa28088b476c29d50f9f3c4fa786f0
SSDEEP 6144:PchSkHeKJTw2wqLo3bj8tNpkRE1HNs33m:GP+Kxw9qM25HmH
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

formbook bi rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

bi

Decoy

frspin.com
voron.black
in296.com
exportar.biz
19138537.com
de-play-games.com
suitmine.com
obedenie.com
inventoswiki.com
ahchoices.com
hushopgawd.com
uvalleconcrete.com
milospetstuff.com
vip-ships.com
huiyuetech.com
realestatewithswann.biz
investbuycoin.com
wememebusiness.info
stringapp.net
monikawaronska.com
rexchangeloans.com
alwaysavailabletowing.com
dg6-edelvais-kk.com
milixianquan.com
cqjiruan.com
a2k4po9w.biz
dengguangyun.com
dimanjj.com
webmail-comtechsystems.com
the-future-of-activation.com
onva.online
superiorcollision.net
peruviajesclub.com
susa-entertainment.com
trendsoftus.com
gamevanilla.com
ethicalserviceslimited.com
haichenge.com
houseofhardbodies.com
nutricionlindavista.com
drivesafetv.com
littlegiggleshomedaycare.com
growplease.com
skysedgemusical.com
louisoadams.com
global-dkt.com
webhostkitchen.com
classicmustanggirls.com
chenshoubing.com
sedwicksir.com
patientsplan.com
mpuhilfe.tips
worldlanguagepodcasting.com
lisablackwellwrites.com
edzxy.com
johannayr.com
irmarepairs.info
mountbougie.com
bitchoffnow.com
heartchurchsd.com
kusn1.info
bisolherbal.com
kicksomfire.com
kingglazers.com
scaker.com

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/3940-13-0x0000000000420000-0x000000000044A000-memory.dmp	formbook

Executes dropped EXE 1 IoCs

pid	Process
3940	svhost.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 936 set thread context of 3940	936	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe	86

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly\Desktop.ini	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe
File opened for modification	C:\Windows\assembly	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe
File created	C:\Windows\assembly\Desktop.ini	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3104	3940	WerFault.exe	86

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe:Zone.Identifier	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
936	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe
936	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	936	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 936 wrote to memory of 988	936	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe	83
PID 936 wrote to memory of 988	936	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe	83
PID 936 wrote to memory of 988	936	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe	83
PID 988 wrote to memory of 4904	988	cmd.exe	85
PID 988 wrote to memory of 4904	988	cmd.exe	85
PID 988 wrote to memory of 4904	988	cmd.exe	85
PID 936 wrote to memory of 3940	936	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe	86
PID 936 wrote to memory of 3940	936	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe	86
PID 936 wrote to memory of 3940	936	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe	86
PID 936 wrote to memory of 3940	936	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe	86
PID 936 wrote to memory of 3940	936	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe	86
PID 936 wrote to memory of 3940	936	3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe	86

C:\Users\Admin\AppData\Local\Temp\3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3ca6adb2c55147131eb87751eba66b89_JaffaCakes118.exe"
1⤵
- Drops desktop.ini file(s)
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:936
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - NTFS ADS
  - Suspicious use of WriteProcessMemory
  PID:988
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe.lnk" /f
    3⤵
    PID:4904
- C:\Users\Admin\AppData\Local\Temp\svhost.exe
  "C:\Users\Admin\AppData\Local\Temp\svhost.exe"
  2⤵
  - Executes dropped EXE
  PID:3940
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3940 -s 220
    3⤵
    - Program crash
    PID:3104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3940 -ip 3940
1⤵
PID:4828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

name.exe

Path C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe
Size 252KB
SHA256 29597c03eed30fc82c0cf555186e218deaf6d32f7a96b9ae0636185da6b664bc
MD5 3ca6adb2c55147131eb87751eba66b89
SHA1 282f6711e594272f30eb613e007c2831d1b6202e
SHA512 e66339b52168d68e3b43552e0059b3ec3903c879ec12676915ee2a719061713b5748399a7f5aeabee4aa7ee8089b42cb77aa28088b476c29d50f9f3c4fa786f0
SSDEEP 6144:PchSkHeKJTw2wqLo3bj8tNpkRE1HNs33m:GP+Kxw9qM25HmH
MD5 SHA1 SHA512 SSDEEP

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svhost.exe

Path C:\Users\Admin\AppData\Local\Temp\svhost.exe
Size 1.6MB
SHA256 e8b5da3394bbdd7868122ffd88d9d06afe31bd69d656857910d2f820c32d0efa
MD5 1c9ff7df71493896054a91bee0322ebf
SHA1 38f1c85965d58b910d8e8381b6b1099d5dfcbfe4
SHA512 aa0def62b663743e6c3c022182b35cff33cb9abf08453d5098f3c5d32b2a8b0cd1cc5de64b93e39680c1d1396fef1fd50b642ca3ea4ba1f6d1078321d96916ab
SSDEEP 24576:D2Jdi2osRvHJT8EZwpqy4JXxDsv6TRrgGdbG4VKMhyMvopZ:DMiQB8EZwmWv6TrGYXhyMvq
MD5 SHA1 SHA512 SSDEEP

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memory/936-0-0x00000000748D2000-0x00000000748D3000-memory.dmp

Download

memory/936-1-0x00000000748D0000-0x0000000074E81000-memory.dmp

Download

memory/936-2-0x00000000748D0000-0x0000000074E81000-memory.dmp

Download

memory/936-17-0x00000000748D0000-0x0000000074E81000-memory.dmp

Download

memory/3940-13-0x0000000000420000-0x000000000044A000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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