formbook | dc2766f4f8bd2b9b0a2b8fb18426735755ba12ac8e080be1107363305f4c5f5b

Analysis

max time kernel
148s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
15/02/2023, 14:41

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General

Target

bokledge4.1.exe
Size

292KB
MD5

500ce28cca98df7f3d40fa8f5e428598
SHA1

83a021883ab8c45b04488074ad5f196dd5bc0de5
SHA256

dc2766f4f8bd2b9b0a2b8fb18426735755ba12ac8e080be1107363305f4c5f5b
SHA512

0a0d6267baad1b5ceec3bd6f8af771456442ea08c3750a0f811dd6bf8281fd66de3e8bdb87a5933dd455af2ab68a795c94a5e0c75e2b6f2b01fd3be207b851b7
SSDEEP

6144:vYa67vB1oNb15mb3SfCt/CE76CQ1vGNJxtkxKKSZvyvB9dSuMwviPnMx5I:vYBvB1Wp8b307NruJnkxqWj4uMVPn/

Score

10^/10

formbook b07o rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

b07o

Decoy

rpalmerdecorating.co.uk

magellanalytics.net

28yorkave.com

woodburnershop.co.uk

jcw-media.com

helinica.com

yuaneju.com

akypan.top

cavidahome.com

annaswiatkowski.com

123findcapital.com

danielle.nyc

dhcons.click

ocnarf.co.uk

1wowoc.top

corbett.one

extersolutions.com

fcukart.com

fadaona.online

guangness.top

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/2268-139-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2268-144-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/512-148-0x0000000000F80000-0x0000000000FAF000-memory.dmp	formbook
behavioral2/memory/512-151-0x0000000000F80000-0x0000000000FAF000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
2204	fmgwqo.exe
2268	fmgwqo.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2204 set thread context of 2268	2204	fmgwqo.exe	80
PID 2268 set thread context of 700	2268	fmgwqo.exe	38
PID 512 set thread context of 700	512	NETSTAT.EXE	38

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

System Information Discovery
T1082

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command-Line Interface

T1059

pid	Process
512	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
2268	fmgwqo.exe
2268	fmgwqo.exe
2268	fmgwqo.exe
2268	fmgwqo.exe
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE
512	NETSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
700	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2204	fmgwqo.exe
2268	fmgwqo.exe
2268	fmgwqo.exe
2268	fmgwqo.exe
512	NETSTAT.EXE
512	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2268	fmgwqo.exe
Token: SeDebugPrivilege	512	NETSTAT.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2416 wrote to memory of 2204	2416	bokledge4.1.exe	79
PID 2416 wrote to memory of 2204	2416	bokledge4.1.exe	79
PID 2416 wrote to memory of 2204	2416	bokledge4.1.exe	79
PID 2204 wrote to memory of 2268	2204	fmgwqo.exe	80
PID 2204 wrote to memory of 2268	2204	fmgwqo.exe	80
PID 2204 wrote to memory of 2268	2204	fmgwqo.exe	80
PID 2204 wrote to memory of 2268	2204	fmgwqo.exe	80
PID 700 wrote to memory of 512	700	Explorer.EXE	81
PID 700 wrote to memory of 512	700	Explorer.EXE	81
PID 700 wrote to memory of 512	700	Explorer.EXE	81
PID 512 wrote to memory of 5024	512	NETSTAT.EXE	82
PID 512 wrote to memory of 5024	512	NETSTAT.EXE	82
PID 512 wrote to memory of 5024	512	NETSTAT.EXE	82

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:700
- C:\Users\Admin\AppData\Local\Temp\bokledge4.1.exe
  "C:\Users\Admin\AppData\Local\Temp\bokledge4.1.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2416
- - C:\Users\Admin\AppData\Local\Temp\fmgwqo.exe
    "C:\Users\Admin\AppData\Local\Temp\fmgwqo.exe" C:\Users\Admin\AppData\Local\Temp\lglfpuxh.i
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:2204
  - - C:\Users\Admin\AppData\Local\Temp\fmgwqo.exe
      "C:\Users\Admin\AppData\Local\Temp\fmgwqo.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2268
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Suspicious use of SetThreadContext
  - Gathers network information
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:512
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\fmgwqo.exe"
    3⤵
    PID:5024

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

C:\Users\Admin\AppData\Local\Temp\fmgwqo.exe

Filesize
139KB

MD5
39e740ff4e6fb6f21830aedff351d66a

SHA1
24211bcc5a5caaa5f5fccaa145017cf1266b7e29

SHA256
670004235984a334c84cc8f7a08f274530799a0b56c360e5bd9b6e5a34361a37

SHA512
89489311827744632af3fb6998344dcc974b138cd33c5a6b9a0b81e4d27bd1f6a4953095d333ac60ff38e9c8d7b1498aa3aa883553fef0f3f59232e5bc54559e

Download Submit
C:\Users\Admin\AppData\Local\Temp\fmgwqo.exe

Filesize
139KB

MD5
39e740ff4e6fb6f21830aedff351d66a

SHA1
24211bcc5a5caaa5f5fccaa145017cf1266b7e29

SHA256
670004235984a334c84cc8f7a08f274530799a0b56c360e5bd9b6e5a34361a37

SHA512
89489311827744632af3fb6998344dcc974b138cd33c5a6b9a0b81e4d27bd1f6a4953095d333ac60ff38e9c8d7b1498aa3aa883553fef0f3f59232e5bc54559e

Download Submit
C:\Users\Admin\AppData\Local\Temp\fmgwqo.exe

Filesize
139KB

MD5
39e740ff4e6fb6f21830aedff351d66a

SHA1
24211bcc5a5caaa5f5fccaa145017cf1266b7e29

SHA256
670004235984a334c84cc8f7a08f274530799a0b56c360e5bd9b6e5a34361a37

SHA512
89489311827744632af3fb6998344dcc974b138cd33c5a6b9a0b81e4d27bd1f6a4953095d333ac60ff38e9c8d7b1498aa3aa883553fef0f3f59232e5bc54559e

Download Submit
C:\Users\Admin\AppData\Local\Temp\lglfpuxh.i

Filesize
5KB

MD5
b6ff144e77e74f6cdea0365ee31214e7

SHA1
50efae8cc2ff6cddf822bd9f330e486cd4252ca8

SHA256
614bbeeede1a2ec9afd7ab98e38ed80f807d7b64214c0ab52b900fb055202ce6

SHA512
b7303e9e911dbe26f1efe5308b6e537bdfe93427ba4c3494ffdbb7ae1d1779e01ba3386eba13eac7f724e4510e107a619a0977b90514264d99c7de4230402c39

Download Submit
C:\Users\Admin\AppData\Local\Temp\slfnfzw.gd

Filesize
205KB

MD5
3cde900bd825c044f5c2690334fa0f1f

SHA1
e0c1a63300eb6cc94940a5eea200b0af8a82c6e5

SHA256
f69c5f49d387c16b28ea47a859f83327080d7415cf46354004ac7c6f4976bebe

SHA512
28af4f4cde12e2e0d6340a1cb52aa4a1824be05c0549cfe409b0b5ee56233d7a134536650f98475573185679f5aa6dd792ff6f012a1d70a0ca9d4d416324ae61

Download Submit
memory/512-151-0x0000000000F80000-0x0000000000FAF000-memory.dmp

Filesize
188KB

Download
memory/512-149-0x0000000001700000-0x0000000001793000-memory.dmp

Filesize
588KB

Download
memory/512-148-0x0000000000F80000-0x0000000000FAF000-memory.dmp

Filesize
188KB

Download
memory/512-147-0x00000000018B0000-0x0000000001BFA000-memory.dmp

Filesize
3.3MB

Download
memory/512-146-0x0000000000DD0000-0x0000000000DDB000-memory.dmp

Filesize
44KB

Download
memory/700-142-0x0000000003170000-0x000000000322C000-memory.dmp

Filesize
752KB

Download
memory/700-150-0x0000000008580000-0x0000000008700000-memory.dmp

Filesize
1.5MB

Download
memory/700-152-0x0000000008580000-0x0000000008700000-memory.dmp

Filesize
1.5MB

Download
memory/2268-144-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2268-141-0x0000000001540000-0x0000000001554000-memory.dmp

Filesize
80KB

Download
memory/2268-140-0x0000000001580000-0x00000000018CA000-memory.dmp

Filesize
3.3MB

Download
memory/2268-139-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download