formbook | a68bc9acb795949fa2d0ee4a4ea0d7242ed87c9a3017af29a8bca49e6814ae37

General

Target

LPO9255892669.exe
Size

607KB
MD5

690b2cd2a36fa7511b2d935a1efdc47f
SHA1

588f35c534c2ed93368446a25dde5f964119119f
SHA256

a68bc9acb795949fa2d0ee4a4ea0d7242ed87c9a3017af29a8bca49e6814ae37
SHA512

5c96a1de338f2994693d0316e72a287ef0001926ca6a24d436d07d7d4e9c381a3bc1226cf567c16f5f600cd2b472130822798dd00ca9cfde09e4257c062db9ff
SSDEEP

12288:tVVln+HKifVQp+l3qRzNFCRZpUEmTITBDnjgqwEi87wruW:5dCKwQpM3wZIHUypjgqri87+uW

Score

10^/10

formbook hc58 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

hc58

Decoy

reunioncoins.com

slot88win.today

diamondcarp.com

poke138.site

cratermaketing.com

mutokiva.website

thstocks5.online

openaquasurge.com

prodsdigital.com

exileescape.com

iqcjuetaudtj.com

bwexhaustprofl.com

indiglobalconnect.com

pushkeyclub.com

stephvin.top

lifebione.com

hannahmegery.com

brookchivell.com

bioskyline.com

nonprofitgrants.online

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/2380-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2380-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2380-22-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2756-30-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2984	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2548 set thread context of 2380	2548	LPO9255892669.exe	31
PID 2380 set thread context of 1136	2380	LPO9255892669.exe	20
PID 2380 set thread context of 1136	2380	LPO9255892669.exe	20
PID 2756 set thread context of 1136	2756	rundll32.exe	20

System Location Discovery: System Language Discovery 1 TTPs 3 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LPO9255892669.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

pid	Process
2380	LPO9255892669.exe
2380	LPO9255892669.exe
2380	LPO9255892669.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe
2756	rundll32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2380	LPO9255892669.exe
2380	LPO9255892669.exe
2380	LPO9255892669.exe
2380	LPO9255892669.exe
2756	rundll32.exe
2756	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2380	LPO9255892669.exe
Token: SeDebugPrivilege	2756	rundll32.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 2380	2548	LPO9255892669.exe	31
PID 2548 wrote to memory of 2380	2548	LPO9255892669.exe	31
PID 2548 wrote to memory of 2380	2548	LPO9255892669.exe	31
PID 2548 wrote to memory of 2380	2548	LPO9255892669.exe	31
PID 2548 wrote to memory of 2380	2548	LPO9255892669.exe	31
PID 2548 wrote to memory of 2380	2548	LPO9255892669.exe	31
PID 2548 wrote to memory of 2380	2548	LPO9255892669.exe	31
PID 1136 wrote to memory of 2756	1136	Explorer.EXE	32
PID 1136 wrote to memory of 2756	1136	Explorer.EXE	32
PID 1136 wrote to memory of 2756	1136	Explorer.EXE	32
PID 1136 wrote to memory of 2756	1136	Explorer.EXE	32
PID 1136 wrote to memory of 2756	1136	Explorer.EXE	32
PID 1136 wrote to memory of 2756	1136	Explorer.EXE	32
PID 1136 wrote to memory of 2756	1136	Explorer.EXE	32
PID 2756 wrote to memory of 2984	2756	rundll32.exe	33
PID 2756 wrote to memory of 2984	2756	rundll32.exe	33
PID 2756 wrote to memory of 2984	2756	rundll32.exe	33
PID 2756 wrote to memory of 2984	2756	rundll32.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1136
- C:\Users\Admin\AppData\Local\Temp\LPO9255892669.exe
  "C:\Users\Admin\AppData\Local\Temp\LPO9255892669.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2548
- - C:\Users\Admin\AppData\Local\Temp\LPO9255892669.exe
    "C:\Users\Admin\AppData\Local\Temp\LPO9255892669.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2380
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.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:2756
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\LPO9255892669.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2984

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/1136-20-0x0000000006D30000-0x0000000006E78000-memory.dmp

Filesize
1.3MB

Download
memory/1136-31-0x0000000004A80000-0x0000000004B3C000-memory.dmp

Filesize
752KB

Download
memory/1136-25-0x0000000006D30000-0x0000000006E78000-memory.dmp

Filesize
1.3MB

Download
memory/1136-24-0x0000000004A80000-0x0000000004B3C000-memory.dmp

Filesize
752KB

Download
memory/1136-19-0x0000000004440000-0x0000000004640000-memory.dmp

Filesize
2.0MB

Download
memory/2380-22-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2380-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2380-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2380-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2380-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2380-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2380-23-0x0000000000220000-0x0000000000235000-memory.dmp

Filesize
84KB

Download
memory/2380-15-0x00000000008D0000-0x0000000000BD3000-memory.dmp

Filesize
3.0MB

Download
memory/2380-18-0x00000000001D0000-0x00000000001E5000-memory.dmp

Filesize
84KB

Download
memory/2548-4-0x00000000743CE000-0x00000000743CF000-memory.dmp

Filesize
4KB

Download
memory/2548-5-0x00000000743C0000-0x0000000074AAE000-memory.dmp

Filesize
6.9MB

Download
memory/2548-6-0x0000000004F40000-0x0000000004FB6000-memory.dmp

Filesize
472KB

Download
memory/2548-14-0x00000000743C0000-0x0000000074AAE000-memory.dmp

Filesize
6.9MB

Download
memory/2548-0-0x00000000743CE000-0x00000000743CF000-memory.dmp

Filesize
4KB

Download
memory/2548-3-0x0000000000B70000-0x0000000000B88000-memory.dmp

Filesize
96KB

Download
memory/2548-2-0x00000000743C0000-0x0000000074AAE000-memory.dmp

Filesize
6.9MB

Download
memory/2548-1-0x0000000000F60000-0x0000000000FFC000-memory.dmp

Filesize
624KB

Download
memory/2756-26-0x0000000000920000-0x000000000092E000-memory.dmp

Filesize
56KB

Download
memory/2756-27-0x0000000000920000-0x000000000092E000-memory.dmp

Filesize
56KB

Download
memory/2756-29-0x0000000000920000-0x000000000092E000-memory.dmp

Filesize
56KB

Download
memory/2756-30-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download

Analysis

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