formbook | 0ce0682abb75b00b32858e270246e168799e2618f671edd3da16680586fb306f

General

Target

REQ-22-TM-0421.exe
Size

339KB
MD5

03c5bcabede556bfc4239b8b5cd82c96
SHA1

f4adc8324ab83478fd1e8d276bde2fec5a37cdef
SHA256

345c796d9c9e422f8d60c79b8979b9de8df2748c6c3e5b78ff3f44a99024b31b
SHA512

5ea449eb53ff8cf669fcd6cffea586cc1a1d88b67fa70c0ff2f72a2e9e8c575edcb0073fa0608cd729e6c7d353480044b6d1cfd10f57089dfac45a7e1d467213
SSDEEP

6144:9kwNabEIE9NpesIQroOyxdbt4v3AWP147fIYSp4CNuVszpRj6ZlXzQ4xypW:HIEPpC8SfbY/4kDVDpRjExyY

Score

10^/10

formbook m5oe rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

m5oe

Decoy

HdR8hG6r12hBYuHY4zv6YeeFPQ==

tD1V9gswYvgQXEGd

1xKtJ1LdqRYMRMC84U1A

MbhjiWb7Lz8z7KIWl3UyUIJwA6Tb

joVB5Xggy2RtE+odsZg=

TrduAIay6Y3SvoIK20xI

pSna7LOsXXwXT/zz3Iow4g==

QnthmO4Qst5gC3sDoA==

eAirzOOgO7SOCenz3Iow4g==

xg0uSbfLTg==

YWQXwyGRzPEHzGrDFE8CBSE=

ujLnfuXoH9dbgHIK20xI

291v0XsGFrYQXEGd

MRvTd/qMuaHpjCM=

X131fLC6VWX4MsvCb2IPjIfq8wlksWfg

Y9Bur8DbgqFt/Yni86MMCCE=

q6RTBmJkmy5pWTmmCCrvmuCDPw==

mQS26DojT+EQXEGd

sjHQ+Kav2Wx9FeodsZg=

JA24UKnTA5re1LhcQaVo/w==

Signatures

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

avzthbaywy.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	avzthbaywy.exe

Executes dropped EXE 2 IoCs

Processes:

avzthbaywy.exeavzthbaywy.exe

pid process

2120 avzthbaywy.exe
4796 avzthbaywy.exe

pid	process
2120	avzthbaywy.exe
4796	avzthbaywy.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

avzthbaywy.exeavzthbaywy.exemstsc.exe

description	pid	process	target process
PID 2120 set thread context of 4796	2120	avzthbaywy.exe	avzthbaywy.exe
PID 4796 set thread context of 3500	4796	avzthbaywy.exe	Explorer.EXE
PID 3988 set thread context of 3500	3988	mstsc.exe	Explorer.EXE

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

mstsc.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-399997616-3400990511-967324271-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	mstsc.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

avzthbaywy.exemstsc.exe

pid	process
4796	avzthbaywy.exe
4796	avzthbaywy.exe
4796	avzthbaywy.exe
4796	avzthbaywy.exe
4796	avzthbaywy.exe
4796	avzthbaywy.exe
4796	avzthbaywy.exe
4796	avzthbaywy.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

avzthbaywy.exeavzthbaywy.exemstsc.exe

pid process

2120 avzthbaywy.exe
4796 avzthbaywy.exe
4796 avzthbaywy.exe
4796 avzthbaywy.exe
3988 mstsc.exe
3988 mstsc.exe
3988 mstsc.exe
3988 mstsc.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

avzthbaywy.exemstsc.exe

description pid process

Token: SeDebugPrivilege 4796 avzthbaywy.exe
Token: SeDebugPrivilege 3988 mstsc.exe
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3500 Explorer.EXE

pid	process
2120	avzthbaywy.exe
4796	avzthbaywy.exe
4796	avzthbaywy.exe
4796	avzthbaywy.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe
3988	mstsc.exe

description	pid	process
Token: SeDebugPrivilege	4796	avzthbaywy.exe
Token: SeDebugPrivilege	3988	mstsc.exe

pid	process
3500	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

REQ-22-TM-0421.exeavzthbaywy.exeExplorer.EXEmstsc.exe

description	pid	process	target process
PID 3264 wrote to memory of 2120	3264	REQ-22-TM-0421.exe	avzthbaywy.exe
PID 3264 wrote to memory of 2120	3264	REQ-22-TM-0421.exe	avzthbaywy.exe
PID 3264 wrote to memory of 2120	3264	REQ-22-TM-0421.exe	avzthbaywy.exe
PID 2120 wrote to memory of 4796	2120	avzthbaywy.exe	avzthbaywy.exe
PID 2120 wrote to memory of 4796	2120	avzthbaywy.exe	avzthbaywy.exe
PID 2120 wrote to memory of 4796	2120	avzthbaywy.exe	avzthbaywy.exe
PID 2120 wrote to memory of 4796	2120	avzthbaywy.exe	avzthbaywy.exe
PID 3500 wrote to memory of 3988	3500	Explorer.EXE	mstsc.exe
PID 3500 wrote to memory of 3988	3500	Explorer.EXE	mstsc.exe
PID 3500 wrote to memory of 3988	3500	Explorer.EXE	mstsc.exe
PID 3988 wrote to memory of 3732	3988	mstsc.exe	Firefox.exe
PID 3988 wrote to memory of 3732	3988	mstsc.exe	Firefox.exe
PID 3988 wrote to memory of 3732	3988	mstsc.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3500
- C:\Users\Admin\AppData\Local\Temp\REQ-22-TM-0421.exe
  "C:\Users\Admin\AppData\Local\Temp\REQ-22-TM-0421.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3264
- - C:\Users\Admin\AppData\Local\Temp\avzthbaywy.exe
    "C:\Users\Admin\AppData\Local\Temp\avzthbaywy.exe" C:\Users\Admin\AppData\Local\Temp\jndtnuycnvd.r
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:2120
  - - C:\Users\Admin\AppData\Local\Temp\avzthbaywy.exe
      "C:\Users\Admin\AppData\Local\Temp\avzthbaywy.exe"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:4796
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3988
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:3732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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\avzthbaywy.exe

Filesize
289KB

MD5
13c80abd753e9c38782524743504a0dd

SHA1
709129996e9d1474f57ed77eb38794d82f9805c4

SHA256
d718c0c41640eefcd910fd40f970e3e47a025352602bd8c0e53ab7baeaba1aa0

SHA512
828830e4ac3c8757ae9d8602415570768903620912d8dcaac87207b9cf054e6ae5a14b2372451160776901a067079a853ef5606114848afee2b440f6279b662f

Download Submit
C:\Users\Admin\AppData\Local\Temp\gfcscamx.xf

Filesize
185KB

MD5
bd816dca0e1567244d663d7aa2df97cc

SHA1
a9502193aa173a9a08f7065c91d22fe530502d5d

SHA256
95b69b89e0b9a28a697a7191873431cc4bf37f45b7cbbb6c2980e96ce35332ef

SHA512
fbd62496698edb400702babefa306d37def3a8550598a647d77e5bcbc03ef8cfe436fa962fcca7e8d67ce0a3744746d3a5531a569bb4c151b44ca4915fabbd9c

Download Submit
C:\Users\Admin\AppData\Local\Temp\jndtnuycnvd.r

Filesize
5KB

MD5
e51ae249af6e2d93c78cbd20d825fe00

SHA1
c0c3b47d4b4b00923d1e488a8752bf6345c04f23

SHA256
ae9c90758dc2e2eca3589500b04e29ff8ecf242726b82339b185eeaa6fe05906

SHA512
a72ecde32a10182218bd89b7dbaf5d38ce9f038b72ea3cb4cb1b235059987759024cb675207e144a0613c1e57b7e654d6770680a4413583c4d9021ca8ff63a6f

Download Submit
memory/2120-7-0x0000000000A50000-0x0000000000A52000-memory.dmp

Filesize
8KB

Download
memory/3500-18-0x0000000007960000-0x0000000007A15000-memory.dmp

Filesize
724KB

Download
memory/3500-40-0x0000000008970000-0x0000000008A0B000-memory.dmp

Filesize
620KB

Download
memory/3500-30-0x0000000008970000-0x0000000008A0B000-memory.dmp

Filesize
620KB

Download
memory/3500-29-0x0000000008970000-0x0000000008A0B000-memory.dmp

Filesize
620KB

Download
memory/3500-27-0x0000000007960000-0x0000000007A15000-memory.dmp

Filesize
724KB

Download
memory/3988-26-0x0000000002430000-0x00000000024BF000-memory.dmp

Filesize
572KB

Download
memory/3988-19-0x0000000000320000-0x000000000045A000-memory.dmp

Filesize
1.2MB

Download
memory/3988-21-0x0000000000320000-0x000000000045A000-memory.dmp

Filesize
1.2MB

Download
memory/3988-22-0x0000000000460000-0x000000000048D000-memory.dmp

Filesize
180KB

Download
memory/3988-23-0x0000000002700000-0x0000000002A4A000-memory.dmp

Filesize
3.3MB

Download
memory/3988-24-0x0000000000460000-0x000000000048D000-memory.dmp

Filesize
180KB

Download
memory/4796-17-0x00000000017E0000-0x00000000017F0000-memory.dmp

Filesize
64KB

Download
memory/4796-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4796-14-0x0000000001A00000-0x0000000001D4A000-memory.dmp

Filesize
3.3MB

Download
memory/4796-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4796-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads