formbook | a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655

General

Target

a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe
Size

607KB
MD5

2cfcfa872943b645d06cfa942435d654
SHA1

0055d197345b987a44eb5606b9de1f37266e02cc
SHA256

a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655
SHA512

50008d8a526146310aeb73ddb8f0d3e5b000dd3fc288109b640f9280e375ce1588640168bbea27a202060a8eaf1abb7e2c0c8d650a856c99ec0dcde8647364e3
SSDEEP

12288:dd9NnRTwX/gNDTIO7LFV9B75Nrwu1oQZwq37crrjjnJZw:H5BvIi79B7t+q37SHJe

Score

10^/10

formbook b31a discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

b31a

Decoy

enjamin-paaac.buzz

mail-marketing-40950.bond

pusems28-post.cyou

hindo.top

ruck-company-be.today

asinos-deutschland.net

ewancash.boats

etdopovo.casino

rcher-saaac.buzz

871166.vip

manuel.app

g3yqo.shop

-9way.xyz

qawgytfexe.bond

iefi6834.vip

ental-health-35901.bond

idat-merkez18.top

rojectleadzone.website

lirudolph.top

migloballlc.online

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/760-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1136 set thread context of 760	1136	a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe	97

System Location Discovery: System Language Discovery 1 TTPs 1 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	a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1136	a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe
1136	a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe
1136	a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe
760	a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe
760	a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1136	a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1136 wrote to memory of 760	1136	a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe	97
PID 1136 wrote to memory of 760	1136	a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe	97
PID 1136 wrote to memory of 760	1136	a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe	97
PID 1136 wrote to memory of 760	1136	a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe	97
PID 1136 wrote to memory of 760	1136	a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe	97
PID 1136 wrote to memory of 760	1136	a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe	97

C:\Users\Admin\AppData\Local\Temp\a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe
"C:\Users\Admin\AppData\Local\Temp\a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1136
- C:\Users\Admin\AppData\Local\Temp\a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe
  "C:\Users\Admin\AppData\Local\Temp\a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:760

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=4276,i,10065386245627775856,6567048529106473151,262144 --variations-seed-version --mojo-platform-channel-handle=1436 /prefetch:8
1⤵
PID:1480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/760-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/760-14-0x0000000001180000-0x00000000014CA000-memory.dmp

Filesize
3.3MB

Download
memory/1136-6-0x0000000005CE0000-0x0000000005CF2000-memory.dmp

Filesize
72KB

Download
memory/1136-3-0x0000000005900000-0x0000000005992000-memory.dmp

Filesize
584KB

Download
memory/1136-4-0x00000000058A0000-0x00000000058AA000-memory.dmp

Filesize
40KB

Download
memory/1136-5-0x0000000074A20000-0x00000000751D0000-memory.dmp

Filesize
7.7MB

Download
memory/1136-0-0x0000000074A2E000-0x0000000074A2F000-memory.dmp

Filesize
4KB

Download
memory/1136-7-0x0000000074A2E000-0x0000000074A2F000-memory.dmp

Filesize
4KB

Download
memory/1136-8-0x0000000074A20000-0x00000000751D0000-memory.dmp

Filesize
7.7MB

Download
memory/1136-9-0x0000000007520000-0x0000000007596000-memory.dmp

Filesize
472KB

Download
memory/1136-10-0x0000000009BF0000-0x0000000009C8C000-memory.dmp

Filesize
624KB

Download
memory/1136-2-0x0000000005EB0000-0x0000000006454000-memory.dmp

Filesize
5.6MB

Download
memory/1136-13-0x0000000074A20000-0x00000000751D0000-memory.dmp

Filesize
7.7MB

Download
memory/1136-1-0x0000000000F60000-0x0000000000FFE000-memory.dmp

Filesize
632KB

Download

Analysis

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