formbook | 032c66d81ce4a924a55d617dffa477aa00585353bcb9a5737a41130cfbe0d054

General

Target

e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe
Size

744KB
MD5

e5499b1ba3f0708bf02685a5d8615f86
SHA1

4f50a2c9acd8b45589fe79423f59735fe8e0e5df
SHA256

032c66d81ce4a924a55d617dffa477aa00585353bcb9a5737a41130cfbe0d054
SHA512

d5e09da1485faab13bd36f2cd265791ca42fe7bfe00ef65b6efc402d3c8100ac49ede313aa803432a0690f55e4b6dd7bacd11f24c3429abdb7a6facf5df0b5bd
SSDEEP

12288:gEYMt4NZddWiui/HFtZ0dg9p+RkArg/KS1OsjQ4W10HK7zaWnPDmy1COQ2b9A87M:mLH9p2gwZFLPiy1lJcmhyXkwoAEpAqH0

Score

10^/10

formbook o4ms discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

o4ms

Decoy

fishingboatpub.com

trebor72.com

qualitycleanaustralia.com

amphilykenyx.com

jayte90.net

alveegrace.com

le-fleursoleil.com

volumoffer.com

businessbookwriters.com

alpin-art.com

firsttastetogo.com

catofc.com

ref-290.com

sbo2008.com

fortlauderdaleelevators.com

shanghaiyalian.com

majestybags.com

afcerd.com

myceliated.com

ls0a.com

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/2668-18-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1620 set thread context of 2668	1620	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	32

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2160	2668	WerFault.exe	32

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	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.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

pid	Process
2556	schtasks.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1620 wrote to memory of 2556	1620	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	30
PID 1620 wrote to memory of 2556	1620	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	30
PID 1620 wrote to memory of 2556	1620	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	30
PID 1620 wrote to memory of 2556	1620	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	30
PID 1620 wrote to memory of 2668	1620	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	32
PID 1620 wrote to memory of 2668	1620	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	32
PID 1620 wrote to memory of 2668	1620	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	32
PID 1620 wrote to memory of 2668	1620	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	32
PID 1620 wrote to memory of 2668	1620	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	32
PID 1620 wrote to memory of 2668	1620	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	32
PID 1620 wrote to memory of 2668	1620	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	32
PID 2668 wrote to memory of 2160	2668	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	33
PID 2668 wrote to memory of 2160	2668	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	33
PID 2668 wrote to memory of 2160	2668	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	33
PID 2668 wrote to memory of 2160	2668	e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1620
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\cfUvoZI" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDB90.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2556
- C:\Users\Admin\AppData\Local\Temp\e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e5499b1ba3f0708bf02685a5d8615f86_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2668
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2668 -s 36
    3⤵
    - Program crash
    PID:2160

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

System Information Discovery

1

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\tmpDB90.tmp

Filesize
1KB

MD5
25453d0511b0460313a523c493b2f9c9

SHA1
68acf5538b74f1125401c448d29ef48ad8c5b237

SHA256
c5e473038eff1297ed10587fb2fc6c9f676a518b61a0edb7c926fb127e076698

SHA512
b5c4b380090a77c5c39e744aabadd7dcf9abcd313d0ce12f9a335f42f2a28378f573003bb57ab4ce8caaf7d0a8bc8ff11ae9ad43a0f4b02abac2717f979d1a4c

Download Submit
memory/1620-6-0x0000000008000000-0x00000000080A4000-memory.dmp

Filesize
656KB

Download
memory/1620-2-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/1620-3-0x00000000003F0000-0x0000000000406000-memory.dmp

Filesize
88KB

Download
memory/1620-4-0x000000007495E000-0x000000007495F000-memory.dmp

Filesize
4KB

Download
memory/1620-5-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/1620-0-0x000000007495E000-0x000000007495F000-memory.dmp

Filesize
4KB

Download
memory/1620-7-0x0000000002080000-0x00000000020B4000-memory.dmp

Filesize
208KB

Download
memory/1620-1-0x0000000000990000-0x0000000000A50000-memory.dmp

Filesize
768KB

Download
memory/1620-19-0x0000000074950000-0x000000007503E000-memory.dmp

Filesize
6.9MB

Download
memory/2668-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2668-18-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2668-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2668-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads