formbook | 0f9aa51dd209c16c1dade86a46fa461d8a045c2350d406700864271dab631b98

General

Target

sample.exe
Size

459KB
MD5

06a466881eb25fe18248221687af6ab3
SHA1

17a3c06f08dc5610134292134baa2c4b122e3b98
SHA256

f8e9e0ca14f6c6759716590b8880593dc9069d7666adc8ebbbb216e7175a1999
SHA512

96b34326e9a8a72ace6c3b584408949f8424caf8d7bcb313a234c1452ee17c814db4277187abd1b15033064d73991bbd6db531b2ba8b0ef8f2d586398fbfbd95
SSDEEP

6144:o9X0GbyZbMNeq+B8r2tOVdNOQ+ZyTZt3EMNe0835iP9cMf9A+jbudLGmvtpGsEYl:e00iaeq+8mMteFpiP9jpELGmvtYnYXOs

Score

10^/10

formbook ndc discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ndc

Decoy

ezy-kitchen.com

steedx.com

angelicacapital.com

mazinglife.com

courtmillbuilders.com

pakoussaapparel.com

thegirlamongthegirlnow.com

melaninandmarscosmetics.com

skylarfeeneyphotography.com

auto-servis.site

casnza.com

good-un.com

wonderfulwanfield.com

cumulustalent.net

cannapecbd.com

westernsocietyspot.club

021jdwx.com

parcelretail.com

lazakanya.com

muslimmediation.com

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/1332-10-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1332-12-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Loads dropped DLL 1 IoCs

pid	Process
2372	sample.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2372 set thread context of 1332	2372	sample.exe	30
PID 1332 set thread context of 1232	1332	sample.exe	21

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
2820	2768	WerFault.exe	34

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	sample.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1332	sample.exe
1332	sample.exe

Suspicious behavior: MapViewOfSection 4 IoCs

pid	Process
2372	sample.exe
1332	sample.exe
1332	sample.exe
1332	sample.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1332	sample.exe
Token: SeShutdownPrivilege	1232	Explorer.EXE
Token: SeShutdownPrivilege	1232	Explorer.EXE
Token: SeShutdownPrivilege	1232	Explorer.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 1332	2372	sample.exe	30
PID 2372 wrote to memory of 1332	2372	sample.exe	30
PID 2372 wrote to memory of 1332	2372	sample.exe	30
PID 2372 wrote to memory of 1332	2372	sample.exe	30
PID 2372 wrote to memory of 1332	2372	sample.exe	30
PID 1232 wrote to memory of 2768	1232	Explorer.EXE	34
PID 1232 wrote to memory of 2768	1232	Explorer.EXE	34
PID 1232 wrote to memory of 2768	1232	Explorer.EXE	34
PID 1232 wrote to memory of 2768	1232	Explorer.EXE	34
PID 1232 wrote to memory of 2768	1232	Explorer.EXE	34
PID 1232 wrote to memory of 2768	1232	Explorer.EXE	34
PID 1232 wrote to memory of 2768	1232	Explorer.EXE	34
PID 2768 wrote to memory of 2820	2768	msiexec.exe	35
PID 2768 wrote to memory of 2820	2768	msiexec.exe	35
PID 2768 wrote to memory of 2820	2768	msiexec.exe	35
PID 2768 wrote to memory of 2820	2768	msiexec.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Users\Admin\AppData\Local\Temp\sample.exe
  "C:\Users\Admin\AppData\Local\Temp\sample.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2372
- - C:\Users\Admin\AppData\Local\Temp\sample.exe
    "C:\Users\Admin\AppData\Local\Temp\sample.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1332
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2124
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2944
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2500
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2768
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2768 -s 268
    3⤵
    - Program crash
    PID:2820

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\nsjA362.tmp\j6m19kru6wpzksw.dll

Filesize
6KB

MD5
fb719cbb8e619a0a53503d32410c099a

SHA1
2d6a082ec6171fa00509758b25299278d1944657

SHA256
1f1a183a52a36d09ce8611504ee629c7c2ef93ad1b09d32fbf2500441b41d0e6

SHA512
68f7d338e41ffade872c8175c0dc62dd296dccd32f9d6308bb0a407c60032877bbd5bff4af7dacbcb3fa023f285ce55935defae750ff7e2108f6ff6f5ab22077

Download Submit
memory/1232-13-0x0000000004EA0000-0x0000000005041000-memory.dmp

Filesize
1.6MB

Download
memory/1232-22-0x0000000004EA0000-0x0000000005041000-memory.dmp

Filesize
1.6MB

Download
memory/1332-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1332-12-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2372-9-0x00000000003D0000-0x00000000003D2000-memory.dmp

Filesize
8KB

Download
memory/2768-17-0x00000000005E0000-0x00000000005F4000-memory.dmp

Filesize
80KB

Download
memory/2768-16-0x00000000005E0000-0x00000000005F4000-memory.dmp

Filesize
80KB

Download
memory/2768-19-0x00000000005E0000-0x00000000005F4000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing