formbook | a8855a4b8a5fb6eba70fa4e49e9f5e1c3007b4b1591530cb92edd39430ae8d04

General

Target

shipment update.exe
Size

658KB
MD5

c969389f57b8748516c408694e11189e
SHA1

7ec5fbfe88a6a8d54c647bcc73ac315b513fca92
SHA256

03369b54bd959d9f0f02b5ce734d502ddcddfee109fed5345c84ae0f365bebf6
SHA512

7826cf7c6dc9f556b885fcee682c70cfca2da36f4596838bee85427447d6b129e84d9d43e3a31935525bd21a3b1a5b16c17da0155b96ef7e4774099bfbef06db
SSDEEP

12288:Ucir1S2IoOAc6/5rZGmy4unKZno/iDDjPPqmgucrl4M5iYXybz8xaMhLdrn8qdMW:1nK9o67ZguinMbIxaMhJD8yMEE0

Score

10^/10

formbook fh84 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

fh84

Decoy

mtzyn.top

zfn-no-hsts.win

j10g.xyz

arehouse-inventory-60572.bond

nlineprodutooffer.shop

ar-deals-77764.bond

e3m2.xyz

cquisitive.group

unkusol.xyz

01307.xyz

uratedcelebrations.net

nfiniworkshop-thai.online

s-cmc.net

idney360.info

ipolar-treatment-us-311-ze.zone

entenstituleridernegi.biz

olombiaoutlet.shop

uradab.rest

qega.shop

73519.vip

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/2708-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2708-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2708-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2488-22-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2816	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2128 set thread context of 2708	2128	shipment update.exe	31
PID 2708 set thread context of 1208	2708	shipment update.exe	21
PID 2708 set thread context of 1208	2708	shipment update.exe	21
PID 2488 set thread context of 1208	2488	systray.exe	21

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	shipment update.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	shipment update.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systray.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
2708	shipment update.exe
2708	shipment update.exe
2708	shipment update.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe
2488	systray.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2708	shipment update.exe
2708	shipment update.exe
2708	shipment update.exe
2708	shipment update.exe
2488	systray.exe
2488	systray.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2708	shipment update.exe
Token: SeDebugPrivilege	2488	systray.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2708	2128	shipment update.exe	31
PID 2128 wrote to memory of 2708	2128	shipment update.exe	31
PID 2128 wrote to memory of 2708	2128	shipment update.exe	31
PID 2128 wrote to memory of 2708	2128	shipment update.exe	31
PID 2128 wrote to memory of 2708	2128	shipment update.exe	31
PID 2128 wrote to memory of 2708	2128	shipment update.exe	31
PID 2128 wrote to memory of 2708	2128	shipment update.exe	31
PID 2128 wrote to memory of 2708	2128	shipment update.exe	31
PID 2128 wrote to memory of 2708	2128	shipment update.exe	31
PID 2128 wrote to memory of 2708	2128	shipment update.exe	31
PID 1208 wrote to memory of 2488	1208	Explorer.EXE	32
PID 1208 wrote to memory of 2488	1208	Explorer.EXE	32
PID 1208 wrote to memory of 2488	1208	Explorer.EXE	32
PID 1208 wrote to memory of 2488	1208	Explorer.EXE	32
PID 2488 wrote to memory of 2816	2488	systray.exe	33
PID 2488 wrote to memory of 2816	2488	systray.exe	33
PID 2488 wrote to memory of 2816	2488	systray.exe	33
PID 2488 wrote to memory of 2816	2488	systray.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1208
- C:\Users\Admin\AppData\Local\Temp\shipment update.exe
  "C:\Users\Admin\AppData\Local\Temp\shipment update.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2128
- - C:\Users\Admin\AppData\Local\Temp\shipment update.exe
    "C:\Users\Admin\AppData\Local\Temp\shipment update.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2708
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.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:2488
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\shipment update.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1208-17-0x0000000007770000-0x0000000007903000-memory.dmp

Filesize
1.6MB

Download
memory/1208-23-0x0000000006B70000-0x0000000006CD0000-memory.dmp

Filesize
1.4MB

Download
memory/1208-13-0x0000000003A80000-0x0000000003B80000-memory.dmp

Filesize
1024KB

Download
memory/1208-19-0x0000000006B70000-0x0000000006CD0000-memory.dmp

Filesize
1.4MB

Download
memory/1208-14-0x0000000007770000-0x0000000007903000-memory.dmp

Filesize
1.6MB

Download
memory/2128-1-0x0000000000620000-0x0000000000632000-memory.dmp

Filesize
72KB

Download
memory/2128-2-0x0000000002570000-0x00000000025E6000-memory.dmp

Filesize
472KB

Download
memory/2128-0-0x0000000000830000-0x00000000008DA000-memory.dmp

Filesize
680KB

Download
memory/2488-22-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2488-20-0x0000000000CB0000-0x0000000000CB5000-memory.dmp

Filesize
20KB

Download
memory/2488-21-0x0000000000CB0000-0x0000000000CB5000-memory.dmp

Filesize
20KB

Download
memory/2708-5-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2708-16-0x0000000000470000-0x0000000000485000-memory.dmp

Filesize
84KB

Download
memory/2708-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2708-12-0x0000000000430000-0x0000000000445000-memory.dmp

Filesize
84KB

Download
memory/2708-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2708-10-0x0000000002630000-0x0000000002933000-memory.dmp

Filesize
3.0MB

Download
memory/2708-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2708-7-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2708-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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