formbook | 594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730

General

Target

Invoice#45.exe
Size

1.1MB
MD5

606756c712cb86af9ce0ec454fe92c99
SHA1

7d5000c5d2a1b5b88039994db9dfa17941170c0c
SHA256

594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730
SHA512

58354f340dc460275137fb25fd175e4cd52a4dcb40f750007a5ba5c68b13a2f5083a372210f5cfb80cd91c8700f425f7bdb37eecdc626b5feb829ecd43151ba3
SSDEEP

24576:utb20pkaCqT5TBWgNQ7aK3ngGxIKLgh06A:bVg5tQ7ainPxIK35

Score

10^/10

formbook bi05 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bi05

Decoy

ollow-the-bit.online

aopho.autos

14ra567dp.autos

48651301.top

ussian-dating-54714.bond

sychology-degree-80838.bond

lytracker.xyz

strology-forest.sbs

swjbcl3.top

ridgenexttechnologies.partners

lroy.sbs

kyscreen.vip

anhit.live

uckyheart.xyz

orddserials.online

hetune.shop

nherited-traits-ant.bond

stanaslot-1.xyz

sychologist-therapy-36914.bond

iandramonami.net

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/1248-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1248-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1868-22-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2540 set thread context of 1248	2540	Invoice#45.exe	30
PID 1248 set thread context of 1228	1248	svchost.exe	21
PID 1868 set thread context of 1228	1868	mstsc.exe	21

System Location Discovery: System Language Discovery 1 TTPs 3 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	Invoice#45.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
1248	svchost.exe
1248	svchost.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe
1868	mstsc.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2540	Invoice#45.exe
1248	svchost.exe
1248	svchost.exe
1248	svchost.exe
1868	mstsc.exe
1868	mstsc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1248	svchost.exe
Token: SeDebugPrivilege	1868	mstsc.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2540	Invoice#45.exe
2540	Invoice#45.exe
1228	Explorer.EXE
1228	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2540	Invoice#45.exe
2540	Invoice#45.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2540 wrote to memory of 1248	2540	Invoice#45.exe	30
PID 2540 wrote to memory of 1248	2540	Invoice#45.exe	30
PID 2540 wrote to memory of 1248	2540	Invoice#45.exe	30
PID 2540 wrote to memory of 1248	2540	Invoice#45.exe	30
PID 2540 wrote to memory of 1248	2540	Invoice#45.exe	30
PID 1228 wrote to memory of 1868	1228	Explorer.EXE	31
PID 1228 wrote to memory of 1868	1228	Explorer.EXE	31
PID 1228 wrote to memory of 1868	1228	Explorer.EXE	31
PID 1228 wrote to memory of 1868	1228	Explorer.EXE	31
PID 1868 wrote to memory of 2684	1868	mstsc.exe	32
PID 1868 wrote to memory of 2684	1868	mstsc.exe	32
PID 1868 wrote to memory of 2684	1868	mstsc.exe	32
PID 1868 wrote to memory of 2684	1868	mstsc.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1228
- C:\Users\Admin\AppData\Local\Temp\Invoice#45.exe
  "C:\Users\Admin\AppData\Local\Temp\Invoice#45.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice#45.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1248
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1868
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1228-18-0x0000000007720000-0x0000000007886000-memory.dmp

Filesize
1.4MB

Download
memory/1228-32-0x00000000079B0000-0x0000000007B12000-memory.dmp

Filesize
1.4MB

Download
memory/1228-30-0x00000000079B0000-0x0000000007B12000-memory.dmp

Filesize
1.4MB

Download
memory/1228-29-0x00000000079B0000-0x0000000007B12000-memory.dmp

Filesize
1.4MB

Download
memory/1228-23-0x0000000007720000-0x0000000007886000-memory.dmp

Filesize
1.4MB

Download
memory/1228-17-0x0000000003EF0000-0x0000000003FF0000-memory.dmp

Filesize
1024KB

Download
memory/1248-16-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/1248-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1248-13-0x0000000000A20000-0x0000000000D23000-memory.dmp

Filesize
3.0MB

Download
memory/1248-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1868-19-0x0000000000450000-0x0000000000554000-memory.dmp

Filesize
1.0MB

Download
memory/1868-21-0x0000000000450000-0x0000000000554000-memory.dmp

Filesize
1.0MB

Download
memory/1868-22-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2540-11-0x00000000000B0000-0x00000000000B4000-memory.dmp

Filesize
16KB

Download

Analysis

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