formbook | 92ea4b0cf6fcc26690114a899d13c975134d5e21b33d2cb6087ef8c336826f19

General

Target

92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe
Size

1.1MB
MD5

4863ac582a190c191b7ac02e0e463ac3
SHA1

686cf063bdd59d93a8b0890e73f324df68ae6139
SHA256

92ea4b0cf6fcc26690114a899d13c975134d5e21b33d2cb6087ef8c336826f19
SHA512

1a0b10a9b973b744180a4e849cfe5b05068ff4fa9417eb3313817cc63527706df33d4362accb598249dc5c05cbfe6217143f82d8bdaa708531a4e8fea19ec6fb
SSDEEP

24576:oAHnh+eWsN3skA4RV1Hom2KXMmHapQYCg7myTaDZP5:vh+ZkldoPK8YapQ9ELA

Score

10^/10

formbook ot96 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ot96

Decoy

yclingbear.studio

sxuio.xyz

eon-official-bk-o57v.buzz

teel.management

rusjitu.sbs

ighwald-holdings.info

ummitfinancal.vip

layvalleyconstruction.online

pp-games-efficsecuspon.xyz

ouh.shop

mgltd.services

gshsjwhgsg.fun

eidotijolo.online

yifg.sbs

nline-gaming-ox-mx.xyz

ux-money.info

inergiputraborneo.dev

panish-classes-67016.bond

reightrading.info

23bet.xyz

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/2000-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2000-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2440-14-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2304 set thread context of 2000	2304	92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe	31
PID 2000 set thread context of 1388	2000	svchost.exe	21
PID 2440 set thread context of 1388	2440	chkdsk.exe	21

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	92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.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 30 IoCs

pid	Process
2000	svchost.exe
2000	svchost.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe
2440	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2304	92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe
2000	svchost.exe
2000	svchost.exe
2000	svchost.exe
2440	chkdsk.exe
2440	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2000	svchost.exe
Token: SeDebugPrivilege	2440	chkdsk.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
2304	92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe
2304	92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe
2304	92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe
1388	Explorer.EXE
1388	Explorer.EXE
1388	Explorer.EXE
1388	Explorer.EXE

Suspicious use of SendNotifyMessage 5 IoCs

pid	Process
2304	92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe
2304	92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe
2304	92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe
1388	Explorer.EXE
1388	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2304 wrote to memory of 2000	2304	92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe	31
PID 2304 wrote to memory of 2000	2304	92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe	31
PID 2304 wrote to memory of 2000	2304	92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe	31
PID 2304 wrote to memory of 2000	2304	92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe	31
PID 2304 wrote to memory of 2000	2304	92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe	31
PID 1388 wrote to memory of 2440	1388	Explorer.EXE	32
PID 1388 wrote to memory of 2440	1388	Explorer.EXE	32
PID 1388 wrote to memory of 2440	1388	Explorer.EXE	32
PID 1388 wrote to memory of 2440	1388	Explorer.EXE	32
PID 2440 wrote to memory of 2492	2440	chkdsk.exe	33
PID 2440 wrote to memory of 2492	2440	chkdsk.exe	33
PID 2440 wrote to memory of 2492	2440	chkdsk.exe	33
PID 2440 wrote to memory of 2492	2440	chkdsk.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Users\Admin\AppData\Local\Temp\92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe
  "C:\Users\Admin\AppData\Local\Temp\92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2304
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\92EA4B0CF6FCC26690114A899D13C975134D5E21B33D2CB6087EF8C336826F19.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2000
- 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:2440
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2492

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

1

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/1388-15-0x00000000064D0000-0x000000000662E000-memory.dmp

Filesize
1.4MB

Download
memory/1388-24-0x0000000006EE0000-0x0000000006FE3000-memory.dmp

Filesize
1.0MB

Download
memory/1388-22-0x0000000006EE0000-0x0000000006FE3000-memory.dmp

Filesize
1.0MB

Download
memory/1388-21-0x0000000006EE0000-0x0000000006FE3000-memory.dmp

Filesize
1.0MB

Download
memory/1388-17-0x0000000003720000-0x0000000003820000-memory.dmp

Filesize
1024KB

Download
memory/1388-11-0x00000000064D0000-0x000000000662E000-memory.dmp

Filesize
1.4MB

Download
memory/2000-10-0x00000000001D0000-0x00000000001E5000-memory.dmp

Filesize
84KB

Download
memory/2000-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2000-7-0x0000000000910000-0x0000000000C13000-memory.dmp

Filesize
3.0MB

Download
memory/2000-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2304-5-0x0000000000560000-0x0000000000564000-memory.dmp

Filesize
16KB

Download
memory/2440-13-0x0000000000790000-0x0000000000797000-memory.dmp

Filesize
28KB

Download
memory/2440-14-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2440-12-0x0000000000790000-0x0000000000797000-memory.dmp

Filesize
28KB

Download

Analysis

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