formbook | bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e

General

Target

bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe
Size

886KB
MD5

246dd488851381fc38deabdd5a744cf2
SHA1

5e3ebea59ef3ac03b86340d04330c0e5372820f7
SHA256

bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e
SHA512

e604bcede1746e52a0c194da619291cc0ff160ec95bdc89d9fda4c708bf22a9ed6a8a2747314019dcbe56dd8cde1e39eeca8ede3189d49c13d610b9e04995efd
SSDEEP

12288:eG2ewUnICei3bEOUnBQY+3Xv3uLq2wSIHGnxTdlseAFh9wQ:N27UnI83Q9BkPHSnxPsD

Score

10^/10

formbook bc01 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bc01

Decoy

epatitis-treatment-26155.bond

52cy67sk.bond

nline-degree-6987776.world

ingxingdiandeng-2033.top

mberbreeze.cyou

48xc300mw.autos

obs-for-seniors-39582.bond

tpetersburg-3-tonn.online

egafon-parser.online

172jh.shop

ltraman.pro

bqfhnys.shop

ntercash24-cad.homes

uhtwister.cloud

alk-in-tubs-27353.bond

ucas-saaad.buzz

oko.events

8080713.xyz

refabricated-homes-74404.bond

inaa.boo

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/2804-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2528	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1816 set thread context of 2804	1816	bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe	32

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2804	bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe
2528	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2528	powershell.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1816 wrote to memory of 2528	1816	bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe	31
PID 1816 wrote to memory of 2528	1816	bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe	31
PID 1816 wrote to memory of 2528	1816	bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe	31
PID 1816 wrote to memory of 2528	1816	bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe	31
PID 1816 wrote to memory of 2804	1816	bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe	32
PID 1816 wrote to memory of 2804	1816	bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe	32
PID 1816 wrote to memory of 2804	1816	bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe	32
PID 1816 wrote to memory of 2804	1816	bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe	32
PID 1816 wrote to memory of 2804	1816	bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe	32
PID 1816 wrote to memory of 2804	1816	bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe	32
PID 1816 wrote to memory of 2804	1816	bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe	32

C:\Users\Admin\AppData\Local\Temp\bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe
"C:\Users\Admin\AppData\Local\Temp\bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1816
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2528
- C:\Users\Admin\AppData\Local\Temp\bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe
  "C:\Users\Admin\AppData\Local\Temp\bf7e2c77f1159e34afbead32a16fbff023b6467104ff0220c81f607a2910880e.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1816-6-0x0000000005B90000-0x0000000005C08000-memory.dmp

Filesize
480KB

Download
memory/1816-1-0x0000000001370000-0x0000000001454000-memory.dmp

Filesize
912KB

Download
memory/1816-2-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/1816-3-0x00000000004C0000-0x00000000004DE000-memory.dmp

Filesize
120KB

Download
memory/1816-4-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/1816-5-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/1816-0-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/1816-14-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/2804-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2804-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2804-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2804-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2804-15-0x0000000000880000-0x0000000000B83000-memory.dmp

Filesize
3.0MB

Download

Analysis

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