formbook | c1191a2395a4bcd7c12c63ed628be5c3df1ab0d0b51d46932716fb0c917c0dde

General

Target

c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe
Size

955KB
MD5

c1b83daeb8757d575a940c65bccb0d1b
SHA1

857e57fbce938345d8baea856ce232179627e995
SHA256

c1191a2395a4bcd7c12c63ed628be5c3df1ab0d0b51d46932716fb0c917c0dde
SHA512

8a8f80c1de2c2fed85091160b1c6c3912b43ed5627d05abb7a8a713a41bf1edfac06e8bd6023925a82b56eafa5340ed4880705588c5e6b405bf70e6cd7b8c3e9
SSDEEP

12288:/6FSCKAIMqmB0a08IEvs81TMe1vJrW5/n8T8S/5uEJ52:a1fI00z8IR81Tdx+8oE3J

Score

10^/10

formbook mdi discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

mdi

Decoy

uproarcatalyst.com

cruisessafaris.com

simplethreads.net

ncsetup.com

dthengjia.com

heyfig.com

inventqa.com

mentoriareset.com

a70a.com

ncolesrose.com

culasarsa.com

southdocknj.com

pistrinalove.com

championvanleasing.com

mazda40.com

lujoscenter.com

wgsol.com

iheart2d.com

olympiccarpetcare.com

aiored.com

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/2504-17-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation	c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4416 set thread context of 2504	4416	c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe	101

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 2 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	c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
3248	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4416	c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe
2504	c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe
2504	c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4416	c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4416 wrote to memory of 3248	4416	c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe	99
PID 4416 wrote to memory of 3248	4416	c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe	99
PID 4416 wrote to memory of 3248	4416	c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe	99
PID 4416 wrote to memory of 2504	4416	c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe	101
PID 4416 wrote to memory of 2504	4416	c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe	101
PID 4416 wrote to memory of 2504	4416	c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe	101
PID 4416 wrote to memory of 2504	4416	c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe	101
PID 4416 wrote to memory of 2504	4416	c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe	101
PID 4416 wrote to memory of 2504	4416	c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe	101

C:\Users\Admin\AppData\Local\Temp\c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4416
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\taoLqqCfkCGUj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC985.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3248
- C:\Users\Admin\AppData\Local\Temp\c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\c1b83daeb8757d575a940c65bccb0d1b_JaffaCakes118.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2504

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\tmpC985.tmp

Filesize
1KB

MD5
b8ac8f4ef059c7a6ad037dc9d93a22f8

SHA1
b9fb185d831b3b1c307fbd0128cb8b876e4713cd

SHA256
9653954cb5c4168944b3be4067d4dde0d942dad2be8fc5affb7455e9cb82498e

SHA512
be7c15baf8d370f1fc5dac8e73c42e09fceb91916a29023c50df2fd7ef12aecc4d8de045f11ee2a566849795ef9e895845c7aefb6ddc24cccafb1bac80bf46f5

Download Submit
memory/2504-20-0x0000000001790000-0x0000000001ADA000-memory.dmp

Filesize
3.3MB

Download
memory/2504-17-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4416-4-0x0000000005860000-0x00000000058F2000-memory.dmp

Filesize
584KB

Download
memory/4416-0-0x00000000748BE000-0x00000000748BF000-memory.dmp

Filesize
4KB

Download
memory/4416-5-0x0000000005780000-0x000000000578A000-memory.dmp

Filesize
40KB

Download
memory/4416-6-0x0000000005AB0000-0x0000000005B06000-memory.dmp

Filesize
344KB

Download
memory/4416-7-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/4416-8-0x0000000005AA0000-0x0000000005AAA000-memory.dmp

Filesize
40KB

Download
memory/4416-9-0x00000000748BE000-0x00000000748BF000-memory.dmp

Filesize
4KB

Download
memory/4416-10-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/4416-11-0x0000000001640000-0x00000000016A2000-memory.dmp

Filesize
392KB

Download
memory/4416-3-0x0000000005E10000-0x00000000063B4000-memory.dmp

Filesize
5.6MB

Download
memory/4416-2-0x00000000057C0000-0x000000000585C000-memory.dmp

Filesize
624KB

Download
memory/4416-19-0x00000000748B0000-0x0000000075060000-memory.dmp

Filesize
7.7MB

Download
memory/4416-1-0x0000000000CD0000-0x0000000000DC6000-memory.dmp

Filesize
984KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads