formbook | b30a9a16ee641129d2bbab1223af27057acd46bb4d6258bf201e2edcb53cc91a

General

Target

b30a9a16ee641129d2bbab1223af27057acd46bb4d6258bf201e2edcb53cc91a.exe
Size

836KB
MD5

a423cf23dc14974951e3c1cb5a8b1f04
SHA1

182133f4b0991a2501eaaaf0799abe4adfb18f08
SHA256

b30a9a16ee641129d2bbab1223af27057acd46bb4d6258bf201e2edcb53cc91a
SHA512

866ab4e1c738cb18a165d5f16340540896f5f29d86f94eee9833f1c78e24128cd134974140e1315d8fe1857114445929684b8be72d2ff5c756b19a58075e2348
SSDEEP

12288:ehkDgouVA2nxKkorvdRgQriDwOIxmxiZnYQE7PJcE4aChZ0DOtlVymK2AibTX:uRmJkcoQricOIQxiZY1iaChZORkAWTX

Score

10^/10

formbook ud04 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ud04

Decoy

oum7.pro

ovonordisk.online

akrzus.pro

tendmtedcpsa.site

mm.foo

animevyhgsft29817.click

digdxxb.info

1130.vip

uy-now-pay-later-74776.bond

ybzert.online

edcn.link

rime-flow-bay.xyz

nd777id.beauty

otoyama.shop

lranchomx.xyz

unluoren.top

uglesang-troms.net

udulbet88.net

raquewear.shop

ijanarko.net

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2692-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2692-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1680-21-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2536 set thread context of 2692	2536	b30a9a16ee641129d2bbab1223af27057acd46bb4d6258bf201e2edcb53cc91a.exe	30
PID 2692 set thread context of 1188	2692	svchost.exe	21
PID 1680 set thread context of 1188	1680	chkdsk.exe	21

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

System Information Discovery
T1082

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	b30a9a16ee641129d2bbab1223af27057acd46bb4d6258bf201e2edcb53cc91a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2692	svchost.exe
2692	svchost.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe
1680	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2536	b30a9a16ee641129d2bbab1223af27057acd46bb4d6258bf201e2edcb53cc91a.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
1680	chkdsk.exe
1680	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	svchost.exe
Token: SeDebugPrivilege	1680	chkdsk.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 2692	2536	b30a9a16ee641129d2bbab1223af27057acd46bb4d6258bf201e2edcb53cc91a.exe	30
PID 2536 wrote to memory of 2692	2536	b30a9a16ee641129d2bbab1223af27057acd46bb4d6258bf201e2edcb53cc91a.exe	30
PID 2536 wrote to memory of 2692	2536	b30a9a16ee641129d2bbab1223af27057acd46bb4d6258bf201e2edcb53cc91a.exe	30
PID 2536 wrote to memory of 2692	2536	b30a9a16ee641129d2bbab1223af27057acd46bb4d6258bf201e2edcb53cc91a.exe	30
PID 2536 wrote to memory of 2692	2536	b30a9a16ee641129d2bbab1223af27057acd46bb4d6258bf201e2edcb53cc91a.exe	30
PID 1188 wrote to memory of 1680	1188	Explorer.EXE	31
PID 1188 wrote to memory of 1680	1188	Explorer.EXE	31
PID 1188 wrote to memory of 1680	1188	Explorer.EXE	31
PID 1188 wrote to memory of 1680	1188	Explorer.EXE	31
PID 1680 wrote to memory of 264	1680	chkdsk.exe	32
PID 1680 wrote to memory of 264	1680	chkdsk.exe	32
PID 1680 wrote to memory of 264	1680	chkdsk.exe	32
PID 1680 wrote to memory of 264	1680	chkdsk.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1188
- C:\Users\Admin\AppData\Local\Temp\b30a9a16ee641129d2bbab1223af27057acd46bb4d6258bf201e2edcb53cc91a.exe
  "C:\Users\Admin\AppData\Local\Temp\b30a9a16ee641129d2bbab1223af27057acd46bb4d6258bf201e2edcb53cc91a.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2536
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\b30a9a16ee641129d2bbab1223af27057acd46bb4d6258bf201e2edcb53cc91a.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2692
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1680
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

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/1188-18-0x0000000005070000-0x00000000051F8000-memory.dmp

Filesize
1.5MB

Download
memory/1188-22-0x0000000005070000-0x00000000051F8000-memory.dmp

Filesize
1.5MB

Download
memory/1680-19-0x0000000000AF0000-0x0000000000AF7000-memory.dmp

Filesize
28KB

Download
memory/1680-20-0x0000000000AF0000-0x0000000000AF7000-memory.dmp

Filesize
28KB

Download
memory/1680-21-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2536-11-0x0000000000150000-0x0000000000250000-memory.dmp

Filesize
1024KB

Download
memory/2692-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2692-13-0x0000000000820000-0x0000000000B23000-memory.dmp

Filesize
3.0MB

Download
memory/2692-17-0x0000000000220000-0x0000000000234000-memory.dmp

Filesize
80KB

Download
memory/2692-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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