formbook | 5017913bca4c5c1eaf5646e3983f9d8fc4e52f4a66406f46f3029952ae1fde70

Resubmissions

18/10/2022, 20:13

221018-yzmhxadee7 10

18/10/2022, 14:28

221018-rs73psgba7 10

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
18/10/2022, 14:28

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General

Target

payload.exe
Size

185KB
MD5

14382242e215d139c77c0ee9bb0c7ad6
SHA1

3951322a28787e4757fd3715d518103d6c054960
SHA256

5017913bca4c5c1eaf5646e3983f9d8fc4e52f4a66406f46f3029952ae1fde70
SHA512

1f4eef4d4685ca466702b45fa163e31089c031d2c491b4a14279bf28cba64a1aada928536df2970399510c4efb093ab08c7a05f0223fde66e751e20c26e07a4b
SSDEEP

3072:yXoVNpuuK+ArjKxjCpZomp/04AkJmHrwF8gUdSl5xCZqnr/xA3unPu:bfp5SZow/04tUuUdeSqri3gu

Score

10^/10

formbook knnt rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

knnt

Decoy

65SBubRb0cQTZyel+RrmtuIytWG7hIY=

lxY8gZLYuXPYl40/

IBCcbQLOUkWVL3cA/DkK2ei+vuKlXA==

4Lo6dar405m4hxqWl58sOc0=

4KyQBqNrzYWTI6Iv016m7BZVvuKlXA==

PyCmasPI0Lj0JTU=

hnoGNwDmybXus0PVH2S1Td2l0ZTJ

s4CRDagqgmaCo9bOBD4i

T5IbS3G46ZbN8RncbsWuAiWl0ZTJ

2vxQ/T6e+7vkjz9yriaOpBbO8bYapwAu

55558Jha4dgR7PCZrQ==

O9KAFJVY3c4V1Xi2rEGne4ZMtSY=

ZPih22lkYU3Yl40/

mCc1tbkLsWeH

MpbgOtnQvGu9jQ==

D6uAq4Gdj3UEkzmKkCOIW4BG

A3rp8NpDzp2Q

4WMaDz2Ff26SfX5xEaABgk0WTQ==

G16+qE5AFMf20h0PxfsyLIZMtSY=

az44qCVNL8dm2vG/nuEbI3K46HT5K44=

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Control Panel\International\Geo\Nation	payload.exe

Loads dropped DLL 1 IoCs

pid	Process
748	control.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1576 set thread context of 1276	1576	payload.exe	15
PID 748 set thread context of 1276	748	control.exe	15

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

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

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
1576	payload.exe
1576	payload.exe
1576	payload.exe
1576	payload.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1576	payload.exe
1576	payload.exe
1576	payload.exe
748	control.exe
748	control.exe
748	control.exe
748	control.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1576	payload.exe
Token: SeDebugPrivilege	748	control.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1276	Explorer.EXE
1276	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1276	Explorer.EXE
1276	Explorer.EXE

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1276 wrote to memory of 748	1276	Explorer.EXE	28
PID 1276 wrote to memory of 748	1276	Explorer.EXE	28
PID 1276 wrote to memory of 748	1276	Explorer.EXE	28
PID 1276 wrote to memory of 748	1276	Explorer.EXE	28
PID 748 wrote to memory of 1968	748	control.exe	31
PID 748 wrote to memory of 1968	748	control.exe	31
PID 748 wrote to memory of 1968	748	control.exe	31
PID 748 wrote to memory of 1968	748	control.exe	31
PID 748 wrote to memory of 1968	748	control.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1276
- C:\Users\Admin\AppData\Local\Temp\payload.exe
  "C:\Users\Admin\AppData\Local\Temp\payload.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  PID:1576
- C:\Windows\SysWOW64\control.exe
  "C:\Windows\SysWOW64\control.exe"
  2⤵
  - 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:748
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1968

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

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

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

Filesize
1.0MB

MD5
f1e5f58f9eb43ecec773acbdb410b888

SHA1
f1b8076b0bbde696694bbc0ab259a77893839464

SHA256
a15fd84ee61b54c92bb099dfb78226548f43d550c67fb6adf4cce3d064ab1c14

SHA512
0aff96430dd99bb227285fefc258014c301f85216c84e40f45702d26cdd7e77261a41fd3811d686f5fb2ee363cc651a014e8ffa339384004cece645a36486456

Download Submit
memory/748-63-0x0000000000340000-0x00000000003CF000-memory.dmp

Filesize
572KB

Download
memory/748-59-0x0000000075B11000-0x0000000075B13000-memory.dmp

Filesize
8KB

Download
memory/748-61-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/748-60-0x0000000000320000-0x000000000033F000-memory.dmp

Filesize
124KB

Download
memory/748-62-0x0000000002110000-0x0000000002413000-memory.dmp

Filesize
3.0MB

Download
memory/748-65-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/1276-57-0x0000000006AD0000-0x0000000006C50000-memory.dmp

Filesize
1.5MB

Download
memory/1276-64-0x00000000063F0000-0x0000000006497000-memory.dmp

Filesize
668KB

Download
memory/1276-66-0x00000000063F0000-0x0000000006497000-memory.dmp

Filesize
668KB

Download
memory/1576-56-0x0000000000070000-0x0000000000080000-memory.dmp

Filesize
64KB

Download
memory/1576-54-0x00000000003A0000-0x00000000003CF000-memory.dmp

Filesize
188KB

Download
memory/1576-55-0x0000000000890000-0x0000000000B93000-memory.dmp

Filesize
3.0MB

Download