formbook | 5c35f2a71144607479cd3b69fad16d64f6714f36de7e380139d36ad74a29675b

General

Target

c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe
Size

788KB
MD5

c1a1574f79de1b92dff600b93af4fb2e
SHA1

fe900346d226cbd124005a96aaa30bab08da74fa
SHA256

5c35f2a71144607479cd3b69fad16d64f6714f36de7e380139d36ad74a29675b
SHA512

316afa911f4c9da7b520b82ce3843f5437a846568034249233b84f50dbf3f722460e281b9271ad592f3c577ec2c67b03533fc34fc39742bdb124f4bd96eb284d
SSDEEP

24576:ZzVvQ+qZALi2Mtv/qLyWcpIw2DUhcSuGsf:ZzVvpqZALgoObplWUhcSuG+

Score

10^/10

formbook vd9n discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

vd9n

Decoy

theunwrappedcollective.com

seckj-ic.com

tyresandover.com

thetrophyworld.com

fonggrconstruction.com

hopiproject.com

sktitle.com

charlotteobscurer.com

qjuhe.com

girlzglitter.com

createmylawn.com

hempcbgpill.com

zzdfdzkj.com

shreehariessential.com

226sm.com

getcupscall.com

neuralviolin.com

sanskaar.life

xn--fhqrm54yyukopc.com

togetherx4fantasy5star.today

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

Processes:

resource	yara_rule
behavioral1/memory/1980-19-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1980-23-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1980-27-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

Processes:

c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exeRegSvcs.exechkdsk.exe

description	pid	Process	procid_target
PID 2320 set thread context of 1980	2320	c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe	32
PID 1980 set thread context of 1216	1980	RegSvcs.exe	21
PID 1980 set thread context of 1216	1980	RegSvcs.exe	21
PID 1656 set thread context of 1216	1656	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 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

Processes:

c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exeschtasks.exechkdsk.execmd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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

Processes:

chkdsk.exe

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

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

Processes:

schtasks.exe

pid	Process
2516	schtasks.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

RegSvcs.exechkdsk.exe

pid	Process
1980	RegSvcs.exe
1980	RegSvcs.exe
1980	RegSvcs.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe
1656	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

RegSvcs.exechkdsk.exe

pid	Process
1980	RegSvcs.exe
1980	RegSvcs.exe
1980	RegSvcs.exe
1980	RegSvcs.exe
1656	chkdsk.exe
1656	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RegSvcs.exechkdsk.exe

description	pid	Process
Token: SeDebugPrivilege	1980	RegSvcs.exe
Token: SeDebugPrivilege	1656	chkdsk.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exeExplorer.EXEchkdsk.exe

description	pid	Process	procid_target
PID 2320 wrote to memory of 2516	2320	c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe	30
PID 2320 wrote to memory of 2516	2320	c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe	30
PID 2320 wrote to memory of 2516	2320	c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe	30
PID 2320 wrote to memory of 2516	2320	c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe	30
PID 2320 wrote to memory of 1980	2320	c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe	32
PID 2320 wrote to memory of 1980	2320	c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe	32
PID 2320 wrote to memory of 1980	2320	c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe	32
PID 2320 wrote to memory of 1980	2320	c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe	32
PID 2320 wrote to memory of 1980	2320	c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe	32
PID 2320 wrote to memory of 1980	2320	c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe	32
PID 2320 wrote to memory of 1980	2320	c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe	32
PID 2320 wrote to memory of 1980	2320	c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe	32
PID 2320 wrote to memory of 1980	2320	c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe	32
PID 2320 wrote to memory of 1980	2320	c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe	32
PID 1216 wrote to memory of 1656	1216	Explorer.EXE	34
PID 1216 wrote to memory of 1656	1216	Explorer.EXE	34
PID 1216 wrote to memory of 1656	1216	Explorer.EXE	34
PID 1216 wrote to memory of 1656	1216	Explorer.EXE	34
PID 1656 wrote to memory of 2588	1656	chkdsk.exe	35
PID 1656 wrote to memory of 2588	1656	chkdsk.exe	35
PID 1656 wrote to memory of 2588	1656	chkdsk.exe	35
PID 1656 wrote to memory of 2588	1656	chkdsk.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Users\Admin\AppData\Local\Temp\c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\c1a1574f79de1b92dff600b93af4fb2e_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2320
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sqswrvwVUHAy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2868.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2516
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1980
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:376
- 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:1656
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp2868.tmp

Filesize
1KB

MD5
adec5f38ace367820bc5fd911abd2b29

SHA1
5edc70fae9920f58ea93dd629291796939bd4a48

SHA256
6322c039992598c908685bf5b18d1b1acc2bbdc19eff7aed667dc92790f8c34b

SHA512
14bfebceb32b468878859bfaa4b2a666fab326e68281e772846e6ec224a00ec611c61bdc82f586edd7ed6dba8d6992fa51647360b81083c2ad46e18b32aad403

Download Submit
memory/1216-33-0x0000000004F60000-0x000000000508B000-memory.dmp

Filesize
1.2MB

Download
memory/1216-30-0x0000000004470000-0x0000000004541000-memory.dmp

Filesize
836KB

Download
memory/1216-29-0x0000000004F60000-0x000000000508B000-memory.dmp

Filesize
1.2MB

Download
memory/1216-25-0x0000000004470000-0x0000000004541000-memory.dmp

Filesize
836KB

Download
memory/1656-32-0x0000000000D20000-0x0000000000D27000-memory.dmp

Filesize
28KB

Download
memory/1656-31-0x0000000000D20000-0x0000000000D27000-memory.dmp

Filesize
28KB

Download
memory/1980-27-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1980-23-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1980-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1980-28-0x0000000000490000-0x00000000004A4000-memory.dmp

Filesize
80KB

Download
memory/1980-19-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1980-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1980-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1980-21-0x0000000000700000-0x0000000000A03000-memory.dmp

Filesize
3.0MB

Download
memory/1980-24-0x0000000000450000-0x0000000000464000-memory.dmp

Filesize
80KB

Download
memory/2320-7-0x0000000005080000-0x00000000050B4000-memory.dmp

Filesize
208KB

Download
memory/2320-6-0x0000000005560000-0x0000000005604000-memory.dmp

Filesize
656KB

Download
memory/2320-0-0x00000000742EE000-0x00000000742EF000-memory.dmp

Filesize
4KB

Download
memory/2320-5-0x00000000742E0000-0x00000000749CE000-memory.dmp

Filesize
6.9MB

Download
memory/2320-20-0x00000000742E0000-0x00000000749CE000-memory.dmp

Filesize
6.9MB

Download
memory/2320-4-0x00000000742EE000-0x00000000742EF000-memory.dmp

Filesize
4KB

Download
memory/2320-3-0x0000000000770000-0x0000000000786000-memory.dmp

Filesize
88KB

Download
memory/2320-2-0x00000000742E0000-0x00000000749CE000-memory.dmp

Filesize
6.9MB

Download
memory/2320-1-0x00000000011E0000-0x00000000012AC000-memory.dmp

Filesize
816KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads