formbook | 31c8c2014f2c7d1425741342ba9cc283641764c189e7e18c0caf571728d931c4

General

Target

cbbd0d914f1b8fd1852e514a77ae16c5_JaffaCakes118.exe
Size

614KB
MD5

cbbd0d914f1b8fd1852e514a77ae16c5
SHA1

cdcfe3f05d2334b387d9347ad7dd0f7806e497f1
SHA256

31c8c2014f2c7d1425741342ba9cc283641764c189e7e18c0caf571728d931c4
SHA512

d38e0dff68899ec64b1f9b77fd4d57f3b5231e36fc79e2303468089b5011eac3969df4aab9fd18240b1dd0f12091f384eb270539a205edc60a31319e2f2626aa
SSDEEP

12288:51beMP9g/CigiRVZzV1NTY9JNSE++JhIQUaPQWdoC4E40fAgyJ:516qCCsLZzV1C9JlJhJJ4Odf6

Score

10^/10

formbook ej discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

ej

Decoy

ratnik.online

qqqq5025.com

oliverschmidtleipzig.biz

wallet-service4.com

securityinformation.link

kuaitool.com

chuanyuemeili.com

jetluxurysedansok.live

xn--autodrne-93a.com

ipdzke.men

opebet489.com

defamey.com

switchbank.finance

bplti.info

habomilk.com

onlineprintersupport.info

kansashemporium.com

xnewmovie.info

yuvakarshan.com

camwrshh.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/3208-24-0x0000000000340000-0x000000000036A000-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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	cbbd0d914f1b8fd1852e514a77ae16c5_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
4288	proj37328.exe
3208	proj37328.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\Desktop\\proj37328.exe -boot"	proj37328.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4288 set thread context of 3208	4288	proj37328.exe	111

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
1828	3208	WerFault.exe	111

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	proj37328.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cbbd0d914f1b8fd1852e514a77ae16c5_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1072	cbbd0d914f1b8fd1852e514a77ae16c5_JaffaCakes118.exe
Token: SeDebugPrivilege	4288	proj37328.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1072 wrote to memory of 2948	1072	cbbd0d914f1b8fd1852e514a77ae16c5_JaffaCakes118.exe	102
PID 1072 wrote to memory of 2948	1072	cbbd0d914f1b8fd1852e514a77ae16c5_JaffaCakes118.exe	102
PID 1072 wrote to memory of 2948	1072	cbbd0d914f1b8fd1852e514a77ae16c5_JaffaCakes118.exe	102
PID 1072 wrote to memory of 1060	1072	cbbd0d914f1b8fd1852e514a77ae16c5_JaffaCakes118.exe	104
PID 1072 wrote to memory of 1060	1072	cbbd0d914f1b8fd1852e514a77ae16c5_JaffaCakes118.exe	104
PID 1072 wrote to memory of 1060	1072	cbbd0d914f1b8fd1852e514a77ae16c5_JaffaCakes118.exe	104
PID 1060 wrote to memory of 4288	1060	cmd.exe	106
PID 1060 wrote to memory of 4288	1060	cmd.exe	106
PID 1060 wrote to memory of 4288	1060	cmd.exe	106
PID 4288 wrote to memory of 3208	4288	proj37328.exe	111
PID 4288 wrote to memory of 3208	4288	proj37328.exe	111
PID 4288 wrote to memory of 3208	4288	proj37328.exe	111
PID 4288 wrote to memory of 3208	4288	proj37328.exe	111
PID 4288 wrote to memory of 3208	4288	proj37328.exe	111
PID 4288 wrote to memory of 3208	4288	proj37328.exe	111

C:\Users\Admin\AppData\Local\Temp\cbbd0d914f1b8fd1852e514a77ae16c5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cbbd0d914f1b8fd1852e514a77ae16c5_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\cbbd0d914f1b8fd1852e514a77ae16c5_JaffaCakes118.exe" "C:\Users\Admin\Desktop\proj37328.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2948
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c, "C:\Users\Admin\Desktop\proj37328.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1060
- - C:\Users\Admin\Desktop\proj37328.exe
    "C:\Users\Admin\Desktop\proj37328.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4288
  - - C:\Users\Admin\Desktop\proj37328.exe
      "C:\Users\Admin\Desktop\proj37328.exe"
      4⤵
      Executes dropped EXE
      PID:3208
    - - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 3208 -s 184
        5⤵
        Program crash
        
        PID:1828

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3908,i,4356837537417149674,16553092232944545509,262144 --variations-seed-version --mojo-platform-channel-handle=3888 /prefetch:8
1⤵
PID:4568

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3208 -ip 3208
1⤵
PID:3480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

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\Desktop\proj37328.exe

Filesize
614KB

MD5
cbbd0d914f1b8fd1852e514a77ae16c5

SHA1
cdcfe3f05d2334b387d9347ad7dd0f7806e497f1

SHA256
31c8c2014f2c7d1425741342ba9cc283641764c189e7e18c0caf571728d931c4

SHA512
d38e0dff68899ec64b1f9b77fd4d57f3b5231e36fc79e2303468089b5011eac3969df4aab9fd18240b1dd0f12091f384eb270539a205edc60a31319e2f2626aa

Download Submit
memory/1072-8-0x000000007512E000-0x000000007512F000-memory.dmp

Filesize
4KB

Download
memory/1072-3-0x00000000075F0000-0x0000000007B94000-memory.dmp

Filesize
5.6MB

Download
memory/1072-13-0x0000000075120000-0x00000000758D0000-memory.dmp

Filesize
7.7MB

Download
memory/1072-1-0x00000000000E0000-0x0000000000182000-memory.dmp

Filesize
648KB

Download
memory/1072-5-0x0000000007120000-0x00000000071B2000-memory.dmp

Filesize
584KB

Download
memory/1072-6-0x0000000007080000-0x00000000070A0000-memory.dmp

Filesize
128KB

Download
memory/1072-7-0x0000000004610000-0x000000000461A000-memory.dmp

Filesize
40KB

Download
memory/1072-0-0x000000007512E000-0x000000007512F000-memory.dmp

Filesize
4KB

Download
memory/1072-9-0x0000000075120000-0x00000000758D0000-memory.dmp

Filesize
7.7MB

Download
memory/1072-2-0x0000000004BC0000-0x0000000004C20000-memory.dmp

Filesize
384KB

Download
memory/1072-4-0x0000000075120000-0x00000000758D0000-memory.dmp

Filesize
7.7MB

Download
memory/3208-24-0x0000000000340000-0x000000000036A000-memory.dmp

Filesize
168KB

Download
memory/4288-17-0x0000000075120000-0x00000000758D0000-memory.dmp

Filesize
7.7MB

Download
memory/4288-18-0x0000000075120000-0x00000000758D0000-memory.dmp

Filesize
7.7MB

Download
memory/4288-19-0x0000000075120000-0x00000000758D0000-memory.dmp

Filesize
7.7MB

Download
memory/4288-20-0x0000000075120000-0x00000000758D0000-memory.dmp

Filesize
7.7MB

Download
memory/4288-21-0x00000000083D0000-0x000000000846C000-memory.dmp

Filesize
624KB

Download
memory/4288-27-0x0000000075120000-0x00000000758D0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads