formbook | ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6

Analysis

max time kernel
148s
max time network
147s
platform
windows7_x64
resource
win7-20220414-en
submitted
22/05/2022, 12:18

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General

Target
9f031a71a8f4dedaff85f360942cd0b7.exe
Size 14KB
Sample220522-pgldfsaad3
SHA256 ac23d509999ba6aeffbf49a41e104a7e876872740dbf24ccff54f5bc36ee3eb6
MD5 9f031a71a8f4dedaff85f360942cd0b7
SHA1 337686652fc8aa067691eb88e00734b477ca86e5
SHA512 72ee3d4db1507147eeba417f0e69063a123139d9f1f2216927b006c2aa32f9aa0840ee45d74afb8b6c47b104949a9d7d05117e8a7b88bad478fb45521862b42d
MD5 SHA1 SHA512

Score

10^/10

formbook s4s9 rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

Campaign

s4s9

Decoy

qianyuandianshang.com
bernardklein.com
slhomeservices.com
findasaas.com
janellelancaster.xyz
umkpro.site
nr6949.online
mersquare.club
lanariproperties.com
3rdeyefocused.com
giftexpress8260.xyz
hilleleven.xyz
beajod.com
kosazs.online
ishare.team
mb314.com
xjjinxingda.com
ayekooprojectamazing.com
ballsybanter.com
todayshoppingbd.com
recomdietvl.store
zakladmalarstwa.com
bj-ours.com
hubwealth.com
watchmyreview.com
sallyliddicoat.com
eventiliveitalia.com
worldchannelconference.com
suciptahadi.online
ksht5566.com
topfastcashsystemwebshop.com
eyeiieyetv.com
thewarchannel.net
valorousgamers.com
vip01ytre.xyz
szec.tech
233365.xyz
specialroute.net
eugenachase.com
pikoulas.com
shorter-658423.site
win8856.com
burleyqpersianscom.com
sidetrackedmusic.com
chungketvinhomesspotlight.com
qiange.site
motconsultant.com
yottatic.com
usaprostatecenter.com
putovanjazasve.com
kozykornerpizza.com
hainpore.com
52appmj.com
albanyskylights.com
keropy.xyz
infosecrety.xyz
ethlogo.com
labohack.com
veridiumid.xyz
gaylebong.com
rsmegastore.com
janschlesinger.com
cshong-ya.com
shopevix.com
preciousssllc.net

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/624-63-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/624-64-0x000000000041F0E0-mapping.dmp	formbook
behavioral1/memory/624-66-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1768-74-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 560 set thread context of 624	560	9f031a71a8f4dedaff85f360942cd0b7.exe	31
PID 624 set thread context of 1428	624	MSBuild.exe	15
PID 1768 set thread context of 1428	1768	ipconfig.exe	15

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1988	timeout.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command-Line Interface

T1059

pid	Process
1768	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
560	9f031a71a8f4dedaff85f360942cd0b7.exe
560	9f031a71a8f4dedaff85f360942cd0b7.exe
560	9f031a71a8f4dedaff85f360942cd0b7.exe
624	MSBuild.exe
624	MSBuild.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe
1768	ipconfig.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
624	MSBuild.exe
624	MSBuild.exe
624	MSBuild.exe
1768	ipconfig.exe
1768	ipconfig.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	560	9f031a71a8f4dedaff85f360942cd0b7.exe
Token: SeDebugPrivilege	624	MSBuild.exe
Token: SeDebugPrivilege	1768	ipconfig.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 560 wrote to memory of 1992	560	9f031a71a8f4dedaff85f360942cd0b7.exe	27
PID 560 wrote to memory of 1992	560	9f031a71a8f4dedaff85f360942cd0b7.exe	27
PID 560 wrote to memory of 1992	560	9f031a71a8f4dedaff85f360942cd0b7.exe	27
PID 560 wrote to memory of 1992	560	9f031a71a8f4dedaff85f360942cd0b7.exe	27
PID 1992 wrote to memory of 1988	1992	cmd.exe	29
PID 1992 wrote to memory of 1988	1992	cmd.exe	29
PID 1992 wrote to memory of 1988	1992	cmd.exe	29
PID 1992 wrote to memory of 1988	1992	cmd.exe	29
PID 560 wrote to memory of 1724	560	9f031a71a8f4dedaff85f360942cd0b7.exe	30
PID 560 wrote to memory of 1724	560	9f031a71a8f4dedaff85f360942cd0b7.exe	30
PID 560 wrote to memory of 1724	560	9f031a71a8f4dedaff85f360942cd0b7.exe	30
PID 560 wrote to memory of 1724	560	9f031a71a8f4dedaff85f360942cd0b7.exe	30
PID 560 wrote to memory of 624	560	9f031a71a8f4dedaff85f360942cd0b7.exe	31
PID 560 wrote to memory of 624	560	9f031a71a8f4dedaff85f360942cd0b7.exe	31
PID 560 wrote to memory of 624	560	9f031a71a8f4dedaff85f360942cd0b7.exe	31
PID 560 wrote to memory of 624	560	9f031a71a8f4dedaff85f360942cd0b7.exe	31
PID 560 wrote to memory of 624	560	9f031a71a8f4dedaff85f360942cd0b7.exe	31
PID 560 wrote to memory of 624	560	9f031a71a8f4dedaff85f360942cd0b7.exe	31
PID 560 wrote to memory of 624	560	9f031a71a8f4dedaff85f360942cd0b7.exe	31
PID 1428 wrote to memory of 1768	1428	Explorer.EXE	32
PID 1428 wrote to memory of 1768	1428	Explorer.EXE	32
PID 1428 wrote to memory of 1768	1428	Explorer.EXE	32
PID 1428 wrote to memory of 1768	1428	Explorer.EXE	32
PID 1768 wrote to memory of 328	1768	ipconfig.exe	33
PID 1768 wrote to memory of 328	1768	ipconfig.exe	33
PID 1768 wrote to memory of 328	1768	ipconfig.exe	33
PID 1768 wrote to memory of 328	1768	ipconfig.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1428
- C:\Users\Admin\AppData\Local\Temp\9f031a71a8f4dedaff85f360942cd0b7.exe
  "C:\Users\Admin\AppData\Local\Temp\9f031a71a8f4dedaff85f360942cd0b7.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:560
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c timeout 2
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1992
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 2
      4⤵
      Delays execution with timeout.exe
      PID:1988
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    3⤵
    PID:1724
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:624
- C:\Windows\SysWOW64\ipconfig.exe
  "C:\Windows\SysWOW64\ipconfig.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1768
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    PID:328

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/560-54-0x0000000000E10000-0x0000000000E18000-memory.dmp

Download

memory/560-55-0x0000000075271000-0x0000000075273000-memory.dmp

Download

memory/560-56-0x0000000005680000-0x00000000056EA000-memory.dmp

Download

memory/560-57-0x00000000004A0000-0x00000000004EC000-memory.dmp

Download

memory/624-66-0x0000000000400000-0x000000000042F000-memory.dmp

Download

memory/624-67-0x0000000000A40000-0x0000000000D43000-memory.dmp

Download

memory/624-61-0x0000000000400000-0x000000000042F000-memory.dmp

Download

memory/624-63-0x0000000000400000-0x000000000042F000-memory.dmp

Download

memory/624-60-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/624-68-0x00000000001D0000-0x00000000001E4000-memory.dmp

Download

memory/1428-69-0x00000000069A0000-0x0000000006B03000-memory.dmp

Download

memory/1428-77-0x0000000004870000-0x0000000004937000-memory.dmp

Download

memory/1768-74-0x00000000000C0000-0x00000000000EF000-memory.dmp

Download

memory/1768-73-0x0000000000B70000-0x0000000000B7A000-memory.dmp

Download

memory/1768-75-0x0000000001F80000-0x0000000002283000-memory.dmp

Download

memory/1768-76-0x0000000000980000-0x0000000000A13000-memory.dmp

Download