formbook | 780c4d3a33c89cd911190c17d7ba3ad69e5ddc66396762e4bef8ff67bd45b7b5

General

Target

lhDCR5RvXwLbWQu.exe
Size

903KB
MD5

66bbfd82c0b1bdd60dca1d71945b42c2
SHA1

467d4125a380f1672983c51f1a4706f039b890af
SHA256

780c4d3a33c89cd911190c17d7ba3ad69e5ddc66396762e4bef8ff67bd45b7b5
SHA512

ca85a5e898139ad5e437a66c99baee9c8408773a214d37df02bad4388f8d5ab30cb240985b8869c1e36d971c9615da236e90de20d3a3e091b13caded01fa2bbf
SSDEEP

12288:4SiJkBoxXIFykQzrAVZK3B6xNYUCSPGnsV9nJyJ+XwrwILkz4ZTyrhbjjq5jCkj4:37wWg4NtCSPGGkUNW2rJjq5uM4

Score

10^/10

formbook dy13 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dy13

Decoy

manga-house.com

kjsdhklssk51.xyz

b0ba138.xyz

bt365033.com

ccbsinc.net

mrwine.xyz

nrxkrd527o.xyz

hoshi.social

1912ai.com

serco2020.com

byfchfyr.xyz

imuschestvostorgov.online

austinheafey.com

mrdfa.club

883106.photos

profitablefxmarkets.com

taini00.net

brye.top

ginsm.com

sportglid.com

Signatures

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

Formbook payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2548-12-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2548-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1428-21-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2836 cmd.exe

pid	process
2836	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

lhDCR5RvXwLbWQu.exelhDCR5RvXwLbWQu.exechkdsk.exe

description	pid	process	target process
PID 2920 set thread context of 2548	2920	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 2548 set thread context of 1212	2548	lhDCR5RvXwLbWQu.exe	Explorer.EXE
PID 1428 set thread context of 1212	1428	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 29 IoCs

Processes:

lhDCR5RvXwLbWQu.exechkdsk.exe

pid	process
2548	lhDCR5RvXwLbWQu.exe
2548	lhDCR5RvXwLbWQu.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe
1428	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

lhDCR5RvXwLbWQu.exechkdsk.exe

pid process

2548 lhDCR5RvXwLbWQu.exe
2548 lhDCR5RvXwLbWQu.exe
2548 lhDCR5RvXwLbWQu.exe
1428 chkdsk.exe
1428 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

lhDCR5RvXwLbWQu.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 2548 lhDCR5RvXwLbWQu.exe
Token: SeDebugPrivilege 1428 chkdsk.exe

description	pid	process
Token: SeDebugPrivilege	2548	lhDCR5RvXwLbWQu.exe
Token: SeDebugPrivilege	1428	chkdsk.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

lhDCR5RvXwLbWQu.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 2920 wrote to memory of 2548	2920	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 2920 wrote to memory of 2548	2920	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 2920 wrote to memory of 2548	2920	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 2920 wrote to memory of 2548	2920	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 2920 wrote to memory of 2548	2920	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 2920 wrote to memory of 2548	2920	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 2920 wrote to memory of 2548	2920	lhDCR5RvXwLbWQu.exe	lhDCR5RvXwLbWQu.exe
PID 1212 wrote to memory of 1428	1212	Explorer.EXE	chkdsk.exe
PID 1212 wrote to memory of 1428	1212	Explorer.EXE	chkdsk.exe
PID 1212 wrote to memory of 1428	1212	Explorer.EXE	chkdsk.exe
PID 1212 wrote to memory of 1428	1212	Explorer.EXE	chkdsk.exe
PID 1428 wrote to memory of 2836	1428	chkdsk.exe	cmd.exe
PID 1428 wrote to memory of 2836	1428	chkdsk.exe	cmd.exe
PID 1428 wrote to memory of 2836	1428	chkdsk.exe	cmd.exe
PID 1428 wrote to memory of 2836	1428	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1212

C:\Users\Admin\AppData\Local\Temp\lhDCR5RvXwLbWQu.exe
"C:\Users\Admin\AppData\Local\Temp\lhDCR5RvXwLbWQu.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2920

C:\Users\Admin\AppData\Local\Temp\lhDCR5RvXwLbWQu.exe
"C:\Users\Admin\AppData\Local\Temp\lhDCR5RvXwLbWQu.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2548

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:2612

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2580

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2564

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2868

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2708

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2720

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2460

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2080

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2864

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2572

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2732

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2488

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2632

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2680

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2024

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2828

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2480

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2624

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2496

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2568

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2452

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2448

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2468

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2484

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2516

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2532

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2576

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2944

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:3000

C:\Windows\SysWOW64\autoconv.exe
"C:\Windows\SysWOW64\autoconv.exe"
2⤵
PID:2520

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1428

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\lhDCR5RvXwLbWQu.exe"
3⤵
- Deletes itself
PID:2836

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/1212-18-0x0000000003A40000-0x0000000003B40000-memory.dmp

Filesize
1024KB

Download
memory/1212-25-0x0000000006300000-0x0000000006466000-memory.dmp

Filesize
1.4MB

Download
memory/1212-19-0x0000000006300000-0x0000000006466000-memory.dmp

Filesize
1.4MB

Download
memory/1428-21-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/1428-20-0x0000000000E80000-0x0000000000E87000-memory.dmp

Filesize
28KB

Download
memory/2548-15-0x0000000000B70000-0x0000000000E73000-memory.dmp

Filesize
3.0MB

Download
memory/2548-16-0x0000000000190000-0x00000000001A5000-memory.dmp

Filesize
84KB

Download
memory/2548-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2548-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2548-8-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2548-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2548-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2920-13-0x0000000074A50000-0x000000007513E000-memory.dmp

Filesize
6.9MB

Download
memory/2920-6-0x00000000049C0000-0x0000000004A44000-memory.dmp

Filesize
528KB

Download
memory/2920-7-0x0000000005580000-0x00000000055F6000-memory.dmp

Filesize
472KB

Download
memory/2920-0-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

Filesize
4KB

Download
memory/2920-5-0x0000000000510000-0x000000000051C000-memory.dmp

Filesize
48KB

Download
memory/2920-4-0x0000000000500000-0x0000000000508000-memory.dmp

Filesize
32KB

Download
memory/2920-3-0x0000000000460000-0x0000000000472000-memory.dmp

Filesize
72KB

Download
memory/2920-2-0x0000000074A50000-0x000000007513E000-memory.dmp

Filesize
6.9MB

Download
memory/2920-1-0x00000000001B0000-0x0000000000298000-memory.dmp

Filesize
928KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads