formbook | 57e610ffae08a6189ecc331352a5115093c0c8b9372756b2211f2e164d052dc5

General

Target

OZsK1zm3hpiRCD2.exe
Size

751KB
MD5

2e5a55a46c75aa53efd566270938d168
SHA1

ce2dbc6468deedaff70830ffa2e7af2c2f36f333
SHA256

57e610ffae08a6189ecc331352a5115093c0c8b9372756b2211f2e164d052dc5
SHA512

8eef317a65dacf9686df9b22b47b9bf6738ec607983740279079b9927f02b4a3413b166500f7c11e1944b62e241aaa0552d1e2b73755dbaecaaed178a49e72a1
SSDEEP

12288:v39mEqOVzmIJnfTu6EKrVwTBbHsot5ZeVK7EWWlPYnlMWn:vIEqE6sTxBwBtve0WRnW

Score

10^/10

formbook t18n discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

t18n

Decoy

tmusicoregon.net

atici.online

j7u7.xyz

iewunucierwuerwnziqi1.info

ruvabetgiris.website

acik.lat

obsk.top

sphaltpaving-ttp1-shd-us-2.shop

ispensarynearme.news

b3nd.bond

urelook.xyz

gearlpfbm.top

aconstructionjob.bond

killsnexis.info

oshon.xyz

ashabsxw.top

ussiatraiding.buzz

raipsehumus.homes

6ae23rx.forum

edar88vvip.shop

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
behavioral1/memory/1148-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1148-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1148-23-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2660-25-0x0000000000080000-0x00000000000AF000-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
2720	powershell.exe

Deletes itself 1 IoCs

pid	Process
1468	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2008 set thread context of 1148	2008	OZsK1zm3hpiRCD2.exe	31
PID 1148 set thread context of 1152	1148	OZsK1zm3hpiRCD2.exe	20
PID 1148 set thread context of 1152	1148	OZsK1zm3hpiRCD2.exe	20
PID 2660 set thread context of 1152	2660	help.exe	20

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 4 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	OZsK1zm3hpiRCD2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	help.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1148	OZsK1zm3hpiRCD2.exe
1148	OZsK1zm3hpiRCD2.exe
2720	powershell.exe
1148	OZsK1zm3hpiRCD2.exe
2660	help.exe
2660	help.exe
2660	help.exe
2660	help.exe
2660	help.exe
2660	help.exe
2660	help.exe
2660	help.exe
2660	help.exe
2660	help.exe
2660	help.exe
2660	help.exe
2660	help.exe
2660	help.exe
2660	help.exe
2660	help.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1152	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1148	OZsK1zm3hpiRCD2.exe
1148	OZsK1zm3hpiRCD2.exe
1148	OZsK1zm3hpiRCD2.exe
1148	OZsK1zm3hpiRCD2.exe
2660	help.exe
2660	help.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1148	OZsK1zm3hpiRCD2.exe
Token: SeDebugPrivilege	2720	powershell.exe
Token: SeDebugPrivilege	2660	help.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2008 wrote to memory of 2720	2008	OZsK1zm3hpiRCD2.exe	30
PID 2008 wrote to memory of 2720	2008	OZsK1zm3hpiRCD2.exe	30
PID 2008 wrote to memory of 2720	2008	OZsK1zm3hpiRCD2.exe	30
PID 2008 wrote to memory of 2720	2008	OZsK1zm3hpiRCD2.exe	30
PID 2008 wrote to memory of 1148	2008	OZsK1zm3hpiRCD2.exe	31
PID 2008 wrote to memory of 1148	2008	OZsK1zm3hpiRCD2.exe	31
PID 2008 wrote to memory of 1148	2008	OZsK1zm3hpiRCD2.exe	31
PID 2008 wrote to memory of 1148	2008	OZsK1zm3hpiRCD2.exe	31
PID 2008 wrote to memory of 1148	2008	OZsK1zm3hpiRCD2.exe	31
PID 2008 wrote to memory of 1148	2008	OZsK1zm3hpiRCD2.exe	31
PID 2008 wrote to memory of 1148	2008	OZsK1zm3hpiRCD2.exe	31
PID 1152 wrote to memory of 2660	1152	Explorer.EXE	34
PID 1152 wrote to memory of 2660	1152	Explorer.EXE	34
PID 1152 wrote to memory of 2660	1152	Explorer.EXE	34
PID 1152 wrote to memory of 2660	1152	Explorer.EXE	34
PID 2660 wrote to memory of 1468	2660	help.exe	35
PID 2660 wrote to memory of 1468	2660	help.exe	35
PID 2660 wrote to memory of 1468	2660	help.exe	35
PID 2660 wrote to memory of 1468	2660	help.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Users\Admin\AppData\Local\Temp\OZsK1zm3hpiRCD2.exe
  "C:\Users\Admin\AppData\Local\Temp\OZsK1zm3hpiRCD2.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2008
- - 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\OZsK1zm3hpiRCD2.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2720
- - C:\Users\Admin\AppData\Local\Temp\OZsK1zm3hpiRCD2.exe
    "C:\Users\Admin\AppData\Local\Temp\OZsK1zm3hpiRCD2.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1148
- C:\Windows\SysWOW64\help.exe
  "C:\Windows\SysWOW64\help.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:2660
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\OZsK1zm3hpiRCD2.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1468

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/1148-12-0x0000000000930000-0x0000000000C33000-memory.dmp

Filesize
3.0MB

Download
memory/1148-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1148-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1148-16-0x0000000000280000-0x0000000000294000-memory.dmp

Filesize
80KB

Download
memory/1148-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1148-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1148-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1148-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1152-17-0x0000000004F80000-0x0000000005119000-memory.dmp

Filesize
1.6MB

Download
memory/1152-28-0x0000000006780000-0x00000000068B8000-memory.dmp

Filesize
1.2MB

Download
memory/1152-14-0x0000000003A90000-0x0000000003B90000-memory.dmp

Filesize
1024KB

Download
memory/2008-4-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/2008-3-0x0000000000600000-0x0000000000618000-memory.dmp

Filesize
96KB

Download
memory/2008-1-0x00000000011E0000-0x00000000012A2000-memory.dmp

Filesize
776KB

Download
memory/2008-2-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2008-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/2008-18-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2008-6-0x0000000000F70000-0x0000000000FE6000-memory.dmp

Filesize
472KB

Download
memory/2008-5-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2660-24-0x00000000009F0000-0x00000000009F6000-memory.dmp

Filesize
24KB

Download
memory/2660-25-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download

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