formbook | 166fbb921baab1b4280ae9d35aaf9664febccce0029eed19cbecfde83d98e0c2

General

Target

5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe
Size

519KB
MD5

ac506b9b66dfac14f67ca92c679d85bd
SHA1

bb39da67bac5c77002c3d88e80888786fcd83acd
SHA256

5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00
SHA512

0a92d007ae6331fd4b9fc8f037b9581fb051ba63fefe0b8f1f74f799885875597b53a579e0c6e7273e336b7de3197c3d4ca92ddce3c45bddde25ebb529464834
SSDEEP

12288:yybs6xoSoNgO7lTPf5aJgGkwuV49WXnX8kp07kyLL1XXMQ+/8+:FNxY3aNkwuV4OqoyLJnMi

Score

10^/10

formbook cfvc discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

cfvc

Decoy

qFcyI8OAPHKap6ubfQ==

NuOCNnr/zOqy1xM5AN4=

CnHfypZMLKQKgKaaVw4J1g==

9WpDFnsiwEyoFko7+GYiyo55

zUKhZPi3f21+ux+L

vqqeiTTPlz+cnQaD

GLGZh9zop+UvsCtBEm9x

eCUGyUEAe9hmj8KgaA==

EvXUn0s63zJyoxQfCGQmMZRu

kVy6iO/FuRGD/A==

+tg0M82KQk7fX4XXoYIluHMEFhbrzMk=

hP/nqutI9DR+0mBnYA==

cwrq1kLJd9QzqtQq9QCc7hHV9FjjKSvU

eE6vlcLHxAHZ7g==

vpKQL84+30y4SZpU/Ox5

vbfnlWZmAj1aVbCdbA==

UNQwEfT8tzbiL3J2Wrjm3g==

02LLqYRY9SeDIHwK5pFjYrg=

PhkLzj8IuT6R7v3lxlBYwqO69HReqnrF

mkYwC5lsF6cDS6RU/Ox5

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
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
2912	powershell.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2688 set thread context of 1520	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	35
PID 1520 set thread context of 1112	1520	RegSvcs.exe	20
PID 1104 set thread context of 1112	1104	mstsc.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	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsc.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2904	schtasks.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe
2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe
1520	RegSvcs.exe
1520	RegSvcs.exe
1520	RegSvcs.exe
1520	RegSvcs.exe
2912	powershell.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe
1104	mstsc.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1520	RegSvcs.exe
1520	RegSvcs.exe
1520	RegSvcs.exe
1104	mstsc.exe
1104	mstsc.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe
Token: SeDebugPrivilege	1520	RegSvcs.exe
Token: SeDebugPrivilege	2912	powershell.exe
Token: SeDebugPrivilege	1104	mstsc.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2688 wrote to memory of 2912	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	31
PID 2688 wrote to memory of 2912	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	31
PID 2688 wrote to memory of 2912	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	31
PID 2688 wrote to memory of 2912	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	31
PID 2688 wrote to memory of 2904	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	33
PID 2688 wrote to memory of 2904	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	33
PID 2688 wrote to memory of 2904	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	33
PID 2688 wrote to memory of 2904	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	33
PID 2688 wrote to memory of 1520	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	35
PID 2688 wrote to memory of 1520	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	35
PID 2688 wrote to memory of 1520	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	35
PID 2688 wrote to memory of 1520	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	35
PID 2688 wrote to memory of 1520	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	35
PID 2688 wrote to memory of 1520	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	35
PID 2688 wrote to memory of 1520	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	35
PID 2688 wrote to memory of 1520	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	35
PID 2688 wrote to memory of 1520	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	35
PID 2688 wrote to memory of 1520	2688	5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe	35
PID 1112 wrote to memory of 1104	1112	Explorer.EXE	36
PID 1112 wrote to memory of 1104	1112	Explorer.EXE	36
PID 1112 wrote to memory of 1104	1112	Explorer.EXE	36
PID 1112 wrote to memory of 1104	1112	Explorer.EXE	36

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1112
- C:\Users\Admin\AppData\Local\Temp\5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe
  "C:\Users\Admin\AppData\Local\Temp\5227918355b47bf8f0cf6eabb0628ff59339d6fd6a3a56ceca4dcefd06dd8d00.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2688
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hwFkBCJyqs.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2912
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hwFkBCJyqs" /XML "C:\Users\Admin\AppData\Local\Temp\tmp45A8.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2904
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1520
- 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
  PID:1104

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp45A8.tmp

Filesize
1KB

MD5
1e27b4e8f9be2ed0cc26dd034371258f

SHA1
4918d0087d74d48c29bd08199c1d6e85c0fc47af

SHA256
c53b964824ee563e0eabbab37dabf7a2c26381a0b0fa22f6fd3a5fcd97d5ef5c

SHA512
5ec18ded96def51eca232990030492cf708d39b04317a9e7d912068e92173e42ff0a685f17ec81c0f031e5a7253776ec5b9b625382543a669a049d41a0da7214

Download Submit
memory/1104-27-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1104-26-0x0000000000470000-0x0000000000574000-memory.dmp

Filesize
1.0MB

Download
memory/1112-25-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1520-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1520-21-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1520-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1520-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1520-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-3-0x00000000004C0000-0x00000000004D8000-memory.dmp

Filesize
96KB

Download
memory/2688-5-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2688-0-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download
memory/2688-15-0x0000000004890000-0x00000000048C4000-memory.dmp

Filesize
208KB

Download
memory/2688-4-0x000000007408E000-0x000000007408F000-memory.dmp

Filesize
4KB

Download
memory/2688-23-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2688-7-0x0000000005720000-0x0000000005790000-memory.dmp

Filesize
448KB

Download
memory/2688-6-0x00000000004E0000-0x00000000004EC000-memory.dmp

Filesize
48KB

Download
memory/2688-2-0x0000000074080000-0x000000007476E000-memory.dmp

Filesize
6.9MB

Download
memory/2688-1-0x0000000000130000-0x00000000001B8000-memory.dmp

Filesize
544KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads