formbook | b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb

General

Target

b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe
Size

994KB
MD5

ad50c081824b04713a98c32b22e487f8
SHA1

757ca6a028d1e38efbedf24a8f957043ae22e694
SHA256

b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb
SHA512

14af69699b174feea717cf92ecf97070878969596ed10f56dd871b57a52d09fcfb154a753e0a160dbdc813e96adea63c7139744751d5a645d5c1ed530abe96e0
SSDEEP

12288:87mFpBYj6jRPLjRPqjBjjyjBjBjBjBjLjkeJ28I4Php94J8JVIQkxHiZ3jJDOK8H:GyBJVIQeIIpgOG75

Score

10^/10

formbook dei5 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dei5

Decoy

studiomullerphoto.com

reallionairewear.com

dogsalondoggy-tail.com

excelmache.net

bigdiscounters.com

7986799.com

ignition.guru

xiaoxu.info

jpinpd.com

solpool.info

uchooswrewards.com

everestengineeringworks.com

qianglongzhipin.com

deepimper-325.com

appliedrate.com

radsazemehr.com

vivabematividadesfisicas.com

capacitalo.com

somecore.com

listingclass.net

Signatures

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

Formbook payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/736-142-0x0000000000400000-0x000000000042E000-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

Processes:

b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe

description	pid	process	target process
PID 4300 set thread context of 736	4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

2756 schtasks.exe

pid	process
2756	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exeb44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe

pid	process
4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe
4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe
4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe
736	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe
736	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe

description pid process

Token: SeDebugPrivilege 4300 b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe

description	pid	process
Token: SeDebugPrivilege	4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe

description	pid	process	target process
PID 4300 wrote to memory of 2756	4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe	schtasks.exe
PID 4300 wrote to memory of 2756	4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe	schtasks.exe
PID 4300 wrote to memory of 2756	4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe	schtasks.exe
PID 4300 wrote to memory of 3884	4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe
PID 4300 wrote to memory of 3884	4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe
PID 4300 wrote to memory of 3884	4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe
PID 4300 wrote to memory of 736	4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe
PID 4300 wrote to memory of 736	4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe
PID 4300 wrote to memory of 736	4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe
PID 4300 wrote to memory of 736	4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe
PID 4300 wrote to memory of 736	4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe
PID 4300 wrote to memory of 736	4300	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe	b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe

C:\Users\Admin\AppData\Local\Temp\b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe
"C:\Users\Admin\AppData\Local\Temp\b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4300
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DIvKOnF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp46D3.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2756
- C:\Users\Admin\AppData\Local\Temp\b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe
  "C:\Users\Admin\AppData\Local\Temp\b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe"
  2⤵
  PID:3884
- C:\Users\Admin\AppData\Local\Temp\b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe
  "C:\Users\Admin\AppData\Local\Temp\b44ee52856f84ec787ba1c374c756932c713d3a93b8a610b0c4e362b008bb5eb.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:736

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp46D3.tmp

Filesize
1KB

MD5
54c0cbe4111b285d8489440a6c3e3dc9

SHA1
a3dbd1c6daac028f1c103fb2324ac0010fcb1a9d

SHA256
e6395e92978d476b8c5232487eaf7e8076dad8b207dad962209d80ab642bde82

SHA512
95aefd54a831e5c4208ef12ec73cc2ed173f0ab816b23cb27507265938a0e60a9fbe317b7321bcbafd27a01f4bca2ee43b2f666b4e10ec2102157efe241537cf

Download Submit
memory/736-141-0x0000000000000000-mapping.dmp

Download
memory/736-142-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/736-143-0x0000000001050000-0x000000000139A000-memory.dmp

Filesize
3.3MB

Download
memory/2756-138-0x0000000000000000-mapping.dmp

Download
memory/3884-140-0x0000000000000000-mapping.dmp

Download
memory/4300-132-0x0000000000A10000-0x0000000000B0E000-memory.dmp

Filesize
1016KB

Download
memory/4300-133-0x0000000005460000-0x00000000054FC000-memory.dmp

Filesize
624KB

Download
memory/4300-134-0x0000000005AB0000-0x0000000006054000-memory.dmp

Filesize
5.6MB

Download
memory/4300-135-0x00000000055A0000-0x0000000005632000-memory.dmp

Filesize
584KB

Download
memory/4300-136-0x0000000005550000-0x000000000555A000-memory.dmp

Filesize
40KB

Download
memory/4300-137-0x00000000056F0000-0x0000000005746000-memory.dmp

Filesize
344KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads