formbook | 05cc8314e613ab92484b4cc0cf78ecad96f36d5bfffa8e9bf1188cfb06efa177

General

Target

Ref8810998235 Auto System Generated Order Form 051022.exe
Size

920KB
MD5

7bf0c2ef33695a76ec7cf8b489cef20d
SHA1

0aaced5986e6dd808ce1128233407d6db7331206
SHA256

832ba5363bd145bbcc01871bf79726fe7d4cfe90d9f93d9cca64598887c91d38
SHA512

31fa2a2a84ea1474b0f1182d1f6ca8b687c29a5246bb58941c86604065e8ed8bb7e49ef41ab84b5f41078fe82f384eb87ead21ee527c0091dd06b79f1ad64cce
SSDEEP

12288:oPCJRz6sid7VycOInfQcbD5+6eAPxB4PWbRdxk4ve:qk6/d7VycpnbI6eWxB68de4ve

Score

10^/10

formbook r83r rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

r83r

Decoy

dF1arqf0q8jqGHpo

3s5obdLT/D42OkXYzXA=

MY4GqPg1TNBZiXEkrsyhlycGUN24oOaU

wKsmWEGSmhvRwo4=

jXeqRbgNrXzVBjEkt+Ircn8q8uqLRxB04g==

kWzwCGp3hZyQemHg2Ho=

vlaarHzH3YTtXSLeyQ==

LSNL62SxS36qDZBx

QzB7kGyuEkIf

AFmNF5DlgUzZjArFIxovHKlaz9E74po=

C/cWvSksOW1y2Gdi

5FdJf9GEwRvRwo4=

szFiiGFq8ubjqCPe/ChZC0g=

AWObGX3KVG9bBtWG4Mu5

80uIK32XLmNVA4xryvpajNA0

10WHLY+Nqu3Pkw/cKRD3Y6pVG8jd

kW/9OTF2FgXkki8UJM8K1vSogA0XnQ==

mAtF/lLM2RvRwo4=

VNFX6OUCoH1rU0XYzXA=

qAdGBejjez+ZCfPo0A==

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	Ref8810998235 Auto System Generated Order Form 051022.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1616 set thread context of 404	1616	Ref8810998235 Auto System Generated Order Form 051022.exe	89
PID 404 set thread context of 2984	404	Ref8810998235 Auto System Generated Order Form 051022.exe	38
PID 1636 set thread context of 2984	1636	cmmon32.exe	38

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmmon32.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

pid	Process
404	Ref8810998235 Auto System Generated Order Form 051022.exe
404	Ref8810998235 Auto System Generated Order Form 051022.exe
404	Ref8810998235 Auto System Generated Order Form 051022.exe
404	Ref8810998235 Auto System Generated Order Form 051022.exe
404	Ref8810998235 Auto System Generated Order Form 051022.exe
404	Ref8810998235 Auto System Generated Order Form 051022.exe
404	Ref8810998235 Auto System Generated Order Form 051022.exe
404	Ref8810998235 Auto System Generated Order Form 051022.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2984	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
404	Ref8810998235 Auto System Generated Order Form 051022.exe
404	Ref8810998235 Auto System Generated Order Form 051022.exe
404	Ref8810998235 Auto System Generated Order Form 051022.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe
1636	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	404	Ref8810998235 Auto System Generated Order Form 051022.exe
Token: SeDebugPrivilege	1636	cmmon32.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 404	1616	Ref8810998235 Auto System Generated Order Form 051022.exe	89
PID 1616 wrote to memory of 404	1616	Ref8810998235 Auto System Generated Order Form 051022.exe	89
PID 1616 wrote to memory of 404	1616	Ref8810998235 Auto System Generated Order Form 051022.exe	89
PID 1616 wrote to memory of 404	1616	Ref8810998235 Auto System Generated Order Form 051022.exe	89
PID 1616 wrote to memory of 404	1616	Ref8810998235 Auto System Generated Order Form 051022.exe	89
PID 1616 wrote to memory of 404	1616	Ref8810998235 Auto System Generated Order Form 051022.exe	89
PID 2984 wrote to memory of 1636	2984	Explorer.EXE	90
PID 2984 wrote to memory of 1636	2984	Explorer.EXE	90
PID 2984 wrote to memory of 1636	2984	Explorer.EXE	90
PID 1636 wrote to memory of 1916	1636	cmmon32.exe	91
PID 1636 wrote to memory of 1916	1636	cmmon32.exe	91
PID 1636 wrote to memory of 1916	1636	cmmon32.exe	91

C:\Users\Admin\AppData\Local\Temp\Ref8810998235 Auto System Generated Order Form 051022.exe
"C:\Users\Admin\AppData\Local\Temp\Ref8810998235 Auto System Generated Order Form 051022.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Users\Admin\AppData\Local\Temp\Ref8810998235 Auto System Generated Order Form 051022.exe
  "C:\Users\Admin\AppData\Local\Temp\Ref8810998235 Auto System Generated Order Form 051022.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  PID:404

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.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:1636
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1916

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/404-139-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/404-145-0x0000000001490000-0x00000000014A0000-memory.dmp

Filesize
64KB

Download
memory/404-144-0x0000000001A30000-0x0000000001D7A000-memory.dmp

Filesize
3.3MB

Download
memory/404-143-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/404-142-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/404-141-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/404-138-0x0000000000000000-mapping.dmp

Download
memory/1616-137-0x00000000091E0000-0x0000000009246000-memory.dmp

Filesize
408KB

Download
memory/1616-132-0x0000000000B40000-0x0000000000C26000-memory.dmp

Filesize
920KB

Download
memory/1616-136-0x00000000090D0000-0x000000000916C000-memory.dmp

Filesize
624KB

Download
memory/1616-135-0x00000000055C0000-0x00000000055CA000-memory.dmp

Filesize
40KB

Download
memory/1616-134-0x0000000005620000-0x00000000056B2000-memory.dmp

Filesize
584KB

Download
memory/1616-133-0x0000000005D10000-0x00000000062B4000-memory.dmp

Filesize
5.6MB

Download
memory/1636-147-0x0000000000000000-mapping.dmp

Download
memory/1636-148-0x0000000000680000-0x000000000068C000-memory.dmp

Filesize
48KB

Download
memory/1636-149-0x0000000000370000-0x000000000039D000-memory.dmp

Filesize
180KB

Download
memory/1636-150-0x00000000025B0000-0x00000000028FA000-memory.dmp

Filesize
3.3MB

Download
memory/1636-151-0x00000000023D0000-0x000000000245F000-memory.dmp

Filesize
572KB

Download
memory/1636-153-0x0000000000370000-0x000000000039D000-memory.dmp

Filesize
180KB

Download
memory/2984-146-0x0000000008A70000-0x0000000008BEC000-memory.dmp

Filesize
1.5MB

Download
memory/2984-152-0x0000000008BF0000-0x0000000008CF7000-memory.dmp

Filesize
1.0MB

Download
memory/2984-154-0x0000000008BF0000-0x0000000008CF7000-memory.dmp

Filesize
1.0MB

Download

Analysis

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