formbook | 5399fd8bbc8978896233268aa24421cd3d206c606d11bcf64548e8a628be6fc3

Analysis

max time kernel
148s
max time network
154s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
10-11-2022 13:51

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

dc4fbd4c5afc724315acba1b784d042c.exe
Size

725KB
MD5

dc4fbd4c5afc724315acba1b784d042c
SHA1

2e1cdca264a4e29571079c2c2a2b36d899812ec8
SHA256

5399fd8bbc8978896233268aa24421cd3d206c606d11bcf64548e8a628be6fc3
SHA512

a2371f0158f41e0bdc651a81e299292f9a73b233074b6ed829d2caab3fedf1ba657a57b890c44b89ed1a0c02f5e38fb14ddd13da6069ed864e1966526bd63c1e
SSDEEP

12288:4i/Pag+5072eFlCk2D3U6xMrDpm6UssNkIhGM/:vF+iquCxnxMrNlU5kq

Score

10^/10

formbook oc5e rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

oc5e

Decoy

ODVenWNCx27xmAQc

4XFONwe0gAX06UZqkA==

AD3Pph7KlPo7lQ==

UR3vF7OcYyyilfE=

dYHbq1q35dWIhecnJZ3aFJEGlDwKDoVM

ZjGUfBForJkYdek=

eHXQr1tI+ySegwM4iBtUkk4KNg0FYMk=

4a8FTkEp+vCjm+4=

aCWI49e/KcsQ8E+EU4GeShabmBah

E6V1p68mgTWfSkhOiA==

iWj9y0Sg3MU2lw==

oHsJ45Ot5v14oRA8Ut6Tqxw=

trdTtZNlNF+VuwQU

tEUYVnll1L4ojA==

Es81jGdN1YW3luwCr3T+WFk0wA==

g5eqC/tlYmtjxxJjnZM4

lFju1HzZ7iWVxxEe

4KE7NhR0YoW9Wllpmw==

qWVEpocCITjplgcphg==

FuCHb/9aumc7

Signatures

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

Blocklisted process makes network request 1 IoCs

Processes:

msiexec.exe

flow	pid	Process
7	1588	msiexec.exe

Loads dropped DLL 1 IoCs

Processes:

msiexec.exe

pid	Process
1588	msiexec.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

dc4fbd4c5afc724315acba1b784d042c.exeMSBuild.exemsiexec.exe

description	pid	Process	procid_target
PID 1808 set thread context of 828	1808	dc4fbd4c5afc724315acba1b784d042c.exe	31
PID 828 set thread context of 1216	828	MSBuild.exe	17
PID 1588 set thread context of 1216	1588	msiexec.exe	17

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task

T1053

Processes:

schtasks.exe

pid	Process
836	schtasks.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2292972927-2705560509-2768824231-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msiexec.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

dc4fbd4c5afc724315acba1b784d042c.exeMSBuild.exepowershell.exemsiexec.exe

pid	Process
1808	dc4fbd4c5afc724315acba1b784d042c.exe
1808	dc4fbd4c5afc724315acba1b784d042c.exe
828	MSBuild.exe
828	MSBuild.exe
828	MSBuild.exe
828	MSBuild.exe
1440	powershell.exe
1588	msiexec.exe
1588	msiexec.exe
1588	msiexec.exe
1588	msiexec.exe
1588	msiexec.exe
1588	msiexec.exe
1588	msiexec.exe
1588	msiexec.exe
1588	msiexec.exe
1588	msiexec.exe
1588	msiexec.exe
1588	msiexec.exe
1588	msiexec.exe
1588	msiexec.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

MSBuild.exemsiexec.exe

pid	Process
828	MSBuild.exe
828	MSBuild.exe
828	MSBuild.exe
1588	msiexec.exe
1588	msiexec.exe
1588	msiexec.exe
1588	msiexec.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

dc4fbd4c5afc724315acba1b784d042c.exeMSBuild.exepowershell.exemsiexec.exe

description	pid	Process
Token: SeDebugPrivilege	1808	dc4fbd4c5afc724315acba1b784d042c.exe
Token: SeDebugPrivilege	828	MSBuild.exe
Token: SeDebugPrivilege	1440	powershell.exe
Token: SeDebugPrivilege	1588	msiexec.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid	Process
1216	Explorer.EXE
1216	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid	Process
1216	Explorer.EXE
1216	Explorer.EXE

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

dc4fbd4c5afc724315acba1b784d042c.exeExplorer.EXEmsiexec.exe

description	pid	Process	procid_target
PID 1808 wrote to memory of 1440	1808	dc4fbd4c5afc724315acba1b784d042c.exe	27
PID 1808 wrote to memory of 1440	1808	dc4fbd4c5afc724315acba1b784d042c.exe	27
PID 1808 wrote to memory of 1440	1808	dc4fbd4c5afc724315acba1b784d042c.exe	27
PID 1808 wrote to memory of 1440	1808	dc4fbd4c5afc724315acba1b784d042c.exe	27
PID 1808 wrote to memory of 836	1808	dc4fbd4c5afc724315acba1b784d042c.exe	29
PID 1808 wrote to memory of 836	1808	dc4fbd4c5afc724315acba1b784d042c.exe	29
PID 1808 wrote to memory of 836	1808	dc4fbd4c5afc724315acba1b784d042c.exe	29
PID 1808 wrote to memory of 836	1808	dc4fbd4c5afc724315acba1b784d042c.exe	29
PID 1808 wrote to memory of 828	1808	dc4fbd4c5afc724315acba1b784d042c.exe	31
PID 1808 wrote to memory of 828	1808	dc4fbd4c5afc724315acba1b784d042c.exe	31
PID 1808 wrote to memory of 828	1808	dc4fbd4c5afc724315acba1b784d042c.exe	31
PID 1808 wrote to memory of 828	1808	dc4fbd4c5afc724315acba1b784d042c.exe	31
PID 1808 wrote to memory of 828	1808	dc4fbd4c5afc724315acba1b784d042c.exe	31
PID 1808 wrote to memory of 828	1808	dc4fbd4c5afc724315acba1b784d042c.exe	31
PID 1808 wrote to memory of 828	1808	dc4fbd4c5afc724315acba1b784d042c.exe	31
PID 1216 wrote to memory of 1588	1216	Explorer.EXE	32
PID 1216 wrote to memory of 1588	1216	Explorer.EXE	32
PID 1216 wrote to memory of 1588	1216	Explorer.EXE	32
PID 1216 wrote to memory of 1588	1216	Explorer.EXE	32
PID 1216 wrote to memory of 1588	1216	Explorer.EXE	32
PID 1216 wrote to memory of 1588	1216	Explorer.EXE	32
PID 1216 wrote to memory of 1588	1216	Explorer.EXE	32
PID 1588 wrote to memory of 1520	1588	msiexec.exe	35
PID 1588 wrote to memory of 1520	1588	msiexec.exe	35
PID 1588 wrote to memory of 1520	1588	msiexec.exe	35
PID 1588 wrote to memory of 1520	1588	msiexec.exe	35
PID 1588 wrote to memory of 1520	1588	msiexec.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Users\Admin\AppData\Local\Temp\dc4fbd4c5afc724315acba1b784d042c.exe
  "C:\Users\Admin\AppData\Local\Temp\dc4fbd4c5afc724315acba1b784d042c.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1808
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EJiyRa.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1440
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EJiyRa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBE03.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:836
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:828
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - Blocklisted process makes network request
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1588
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1520

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpBE03.tmp

Filesize
1KB

MD5
236f25289f2c9bac6ceb697fa0979576

SHA1
8166e7add466e8aa4bbffea1d07e6ef7e33738e9

SHA256
15507d54315127a5aa3dee5ec758223d20b4529baa014bb4d12dd7eeab92173c

SHA512
64a8fc2d87a52073e0b288a890bafdf1f72a069259a9a951be0335a811dcf6dc2031c2824bcfda901ce388d1343988d1f69e29379577d134a16b9b583a86e558

Download Submit
\Users\Admin\AppData\Local\Temp\sqlite3.dll

Filesize
890KB

MD5
8402a6aa76d7787ff03943dd129e3d83

SHA1
895338cb761d62930ca93918011fd2cd33d5b30c

SHA256
49ff99d5b24f4f7d5a8ea175f35a6548c74b04e5c621c60121b5088dab19b4eb

SHA512
39bbe90385be35492825929296aae771fb4afb00a1f6a48f0e4ec17bc1097c3a32cea3b22033116c82695e66acbd6c847483a8da21e7302240467b58e39169ea

Download Submit
memory/828-71-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/828-68-0x00000000004012B0-mapping.dmp

Download
memory/828-72-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/828-75-0x00000000000F0000-0x0000000000100000-memory.dmp

Filesize
64KB

Download
memory/828-74-0x00000000009E0000-0x0000000000CE3000-memory.dmp

Filesize
3.0MB

Download
memory/828-70-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/828-67-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/828-64-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/828-65-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/836-60-0x0000000000000000-mapping.dmp

Download
memory/1216-84-0x0000000004BC0000-0x0000000004D46000-memory.dmp

Filesize
1.5MB

Download
memory/1216-76-0x0000000004FB0000-0x000000000515A000-memory.dmp

Filesize
1.7MB

Download
memory/1216-85-0x0000000004BC0000-0x0000000004D46000-memory.dmp

Filesize
1.5MB

Download
memory/1440-73-0x000000006E080000-0x000000006E62B000-memory.dmp

Filesize
5.7MB

Download
memory/1440-77-0x000000006E080000-0x000000006E62B000-memory.dmp

Filesize
5.7MB

Download
memory/1440-59-0x0000000000000000-mapping.dmp

Download
memory/1588-78-0x0000000000000000-mapping.dmp

Download
memory/1588-81-0x0000000000090000-0x00000000000BD000-memory.dmp

Filesize
180KB

Download
memory/1588-80-0x0000000000880000-0x0000000000894000-memory.dmp

Filesize
80KB

Download
memory/1588-82-0x0000000002250000-0x0000000002553000-memory.dmp

Filesize
3.0MB

Download
memory/1588-83-0x00000000007F0000-0x000000000087F000-memory.dmp

Filesize
572KB

Download
memory/1808-55-0x0000000076171000-0x0000000076173000-memory.dmp

Filesize
8KB

Download
memory/1808-57-0x00000000005F0000-0x00000000005FC000-memory.dmp

Filesize
48KB

Download
memory/1808-58-0x0000000005BB0000-0x0000000005C20000-memory.dmp

Filesize
448KB

Download
memory/1808-63-0x0000000005B30000-0x0000000005B66000-memory.dmp

Filesize
216KB

Download
memory/1808-56-0x00000000006B0000-0x00000000006C8000-memory.dmp

Filesize
96KB

Download
memory/1808-54-0x0000000000160000-0x000000000021A000-memory.dmp

Filesize
744KB

Download