formbook | 5399fd8bbc8978896233268aa24421cd3d206c606d11bcf64548e8a628be6fc3

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
10-11-2022 13:51

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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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

dc4fbd4c5afc724315acba1b784d042c.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	dc4fbd4c5afc724315acba1b784d042c.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

dc4fbd4c5afc724315acba1b784d042c.exeMSBuild.execolorcpl.exe

description	pid	Process	procid_target
PID 4572 set thread context of 1068	4572	dc4fbd4c5afc724315acba1b784d042c.exe	92
PID 1068 set thread context of 2228	1068	MSBuild.exe	54
PID 4240 set thread context of 2228	4240	colorcpl.exe	54

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
3564	schtasks.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

colorcpl.exe

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	colorcpl.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

Processes:

dc4fbd4c5afc724315acba1b784d042c.exepowershell.exeMSBuild.execolorcpl.exe

pid	Process
4572	dc4fbd4c5afc724315acba1b784d042c.exe
4572	dc4fbd4c5afc724315acba1b784d042c.exe
820	powershell.exe
1068	MSBuild.exe
1068	MSBuild.exe
1068	MSBuild.exe
1068	MSBuild.exe
1068	MSBuild.exe
1068	MSBuild.exe
1068	MSBuild.exe
1068	MSBuild.exe
820	powershell.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid	Process
2228	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

MSBuild.execolorcpl.exe

pid	Process
1068	MSBuild.exe
1068	MSBuild.exe
1068	MSBuild.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe
4240	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

dc4fbd4c5afc724315acba1b784d042c.exepowershell.exeMSBuild.execolorcpl.exeExplorer.EXE

description	pid	Process
Token: SeDebugPrivilege	4572	dc4fbd4c5afc724315acba1b784d042c.exe
Token: SeDebugPrivilege	820	powershell.exe
Token: SeDebugPrivilege	1068	MSBuild.exe
Token: SeDebugPrivilege	4240	colorcpl.exe
Token: SeShutdownPrivilege	2228	Explorer.EXE
Token: SeCreatePagefilePrivilege	2228	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

dc4fbd4c5afc724315acba1b784d042c.exeExplorer.EXEcolorcpl.exe

description	pid	Process	procid_target
PID 4572 wrote to memory of 820	4572	dc4fbd4c5afc724315acba1b784d042c.exe	88
PID 4572 wrote to memory of 820	4572	dc4fbd4c5afc724315acba1b784d042c.exe	88
PID 4572 wrote to memory of 820	4572	dc4fbd4c5afc724315acba1b784d042c.exe	88
PID 4572 wrote to memory of 3564	4572	dc4fbd4c5afc724315acba1b784d042c.exe	90
PID 4572 wrote to memory of 3564	4572	dc4fbd4c5afc724315acba1b784d042c.exe	90
PID 4572 wrote to memory of 3564	4572	dc4fbd4c5afc724315acba1b784d042c.exe	90
PID 4572 wrote to memory of 1068	4572	dc4fbd4c5afc724315acba1b784d042c.exe	92
PID 4572 wrote to memory of 1068	4572	dc4fbd4c5afc724315acba1b784d042c.exe	92
PID 4572 wrote to memory of 1068	4572	dc4fbd4c5afc724315acba1b784d042c.exe	92
PID 4572 wrote to memory of 1068	4572	dc4fbd4c5afc724315acba1b784d042c.exe	92
PID 4572 wrote to memory of 1068	4572	dc4fbd4c5afc724315acba1b784d042c.exe	92
PID 4572 wrote to memory of 1068	4572	dc4fbd4c5afc724315acba1b784d042c.exe	92
PID 2228 wrote to memory of 4240	2228	Explorer.EXE	93
PID 2228 wrote to memory of 4240	2228	Explorer.EXE	93
PID 2228 wrote to memory of 4240	2228	Explorer.EXE	93
PID 4240 wrote to memory of 4128	4240	colorcpl.exe	94
PID 4240 wrote to memory of 4128	4240	colorcpl.exe	94
PID 4240 wrote to memory of 4128	4240	colorcpl.exe	94

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Users\Admin\AppData\Local\Temp\dc4fbd4c5afc724315acba1b784d042c.exe
  "C:\Users\Admin\AppData\Local\Temp\dc4fbd4c5afc724315acba1b784d042c.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4572
- - 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:820
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EJiyRa" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7714.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3564
- - 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:1068
- C:\Windows\SysWOW64\colorcpl.exe
  "C:\Windows\SysWOW64\colorcpl.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4240
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4128

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp7714.tmp

Filesize
1KB

MD5
23ab34f2929dc2e2de7eb997234bf2c4

SHA1
0a1b1d341fd51ceb611a9eb9c7202c85ed1e99b1

SHA256
9d3ff5228a20adb102d3d6ef7bdbedd107fb7b28ecc4867eb92f2dfa792eb39c

SHA512
8472aefc0c66f87b13fc424dd38bdcd32378ccc94188b7e8f9c7eb34ad9dfc1cd46b64c879b99225513c957cf3c439cf54e20ca0780ae97ab235b6a3266d22a3

Download Submit
memory/820-165-0x0000000007B10000-0x0000000007BA6000-memory.dmp

Filesize
600KB

Download
memory/820-137-0x0000000000000000-mapping.dmp

Download
memory/820-141-0x0000000005680000-0x0000000005CA8000-memory.dmp

Filesize
6.2MB

Download
memory/820-154-0x00000000052C0000-0x00000000052DE000-memory.dmp

Filesize
120KB

Download
memory/820-162-0x0000000007890000-0x00000000078AA000-memory.dmp

Filesize
104KB

Download
memory/820-163-0x0000000007900000-0x000000000790A000-memory.dmp

Filesize
40KB

Download
memory/820-139-0x0000000004FB0000-0x0000000004FE6000-memory.dmp

Filesize
216KB

Download
memory/820-161-0x0000000007EE0000-0x000000000855A000-memory.dmp

Filesize
6.5MB

Download
memory/820-166-0x0000000007AD0000-0x0000000007ADE000-memory.dmp

Filesize
56KB

Download
memory/820-167-0x0000000007BE0000-0x0000000007BFA000-memory.dmp

Filesize
104KB

Download
memory/820-168-0x0000000007BC0000-0x0000000007BC8000-memory.dmp

Filesize
32KB

Download
memory/820-145-0x0000000005540000-0x0000000005562000-memory.dmp

Filesize
136KB

Download
memory/820-146-0x0000000005E20000-0x0000000005E86000-memory.dmp

Filesize
408KB

Download
memory/820-147-0x0000000005F00000-0x0000000005F66000-memory.dmp

Filesize
408KB

Download
memory/820-157-0x0000000006B20000-0x0000000006B3E000-memory.dmp

Filesize
120KB

Download
memory/820-156-0x0000000070FD0000-0x000000007101C000-memory.dmp

Filesize
304KB

Download
memory/820-155-0x0000000007570000-0x00000000075A2000-memory.dmp

Filesize
200KB

Download
memory/1068-142-0x0000000000000000-mapping.dmp

Download
memory/1068-152-0x0000000001160000-0x0000000001170000-memory.dmp

Filesize
64KB

Download
memory/1068-151-0x0000000001730000-0x0000000001A7A000-memory.dmp

Filesize
3.3MB

Download
memory/1068-150-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1068-149-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1068-148-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1068-143-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2228-153-0x0000000002950000-0x0000000002A3B000-memory.dmp

Filesize
940KB

Download
memory/2228-170-0x0000000002A40000-0x0000000002B1D000-memory.dmp

Filesize
884KB

Download
memory/2228-172-0x0000000002A40000-0x0000000002B1D000-memory.dmp

Filesize
884KB

Download
memory/3564-138-0x0000000000000000-mapping.dmp

Download
memory/4240-159-0x0000000000560000-0x0000000000579000-memory.dmp

Filesize
100KB

Download
memory/4240-169-0x0000000002D80000-0x0000000002E0F000-memory.dmp

Filesize
572KB

Download
memory/4240-164-0x0000000003050000-0x000000000339A000-memory.dmp

Filesize
3.3MB

Download
memory/4240-160-0x0000000000DD0000-0x0000000000DFD000-memory.dmp

Filesize
180KB

Download
memory/4240-171-0x0000000000DD0000-0x0000000000DFD000-memory.dmp

Filesize
180KB

Download
memory/4240-158-0x0000000000000000-mapping.dmp

Download
memory/4572-132-0x0000000000D00000-0x0000000000DBA000-memory.dmp

Filesize
744KB

Download
memory/4572-133-0x0000000005DB0000-0x0000000006354000-memory.dmp

Filesize
5.6MB

Download
memory/4572-134-0x0000000005750000-0x00000000057E2000-memory.dmp

Filesize
584KB

Download
memory/4572-135-0x0000000005820000-0x000000000582A000-memory.dmp

Filesize
40KB

Download
memory/4572-136-0x0000000009700000-0x000000000979C000-memory.dmp

Filesize
624KB

Download