formbook | 98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea

General

Target

98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe
Size

1.0MB
MD5

820de48affdf7a70230640b8adb01f67
SHA1

f8f004884c53f8e55fff249a851a614dc2f34bcb
SHA256

98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea
SHA512

87f1482527d41fe7fb8e715551f69a00b25b62c203bf814032caf200cac503ac39b7464814c64f83d27fa99ec4d9fd1268d4fad6a959d0860dcd42858aa27abb
SSDEEP

24576:HeUVYtXiZ4xN3f7a3fjyOlch/TMtdycjRI/F3:+UYtXiZ4xxzar+oKcja9

Score

10^/10

formbook dei5 discovery 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 3 IoCs

rat

resource	yara_rule
behavioral1/memory/3036-17-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/3036-21-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/2876-27-0x0000000000080000-0x00000000000AE000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2860 set thread context of 3036	2860	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	31
PID 3036 set thread context of 1220	3036	RegSvcs.exe	20
PID 2876 set thread context of 1220	2876	chkdsk.exe	20

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chkdsk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2096	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3036	RegSvcs.exe
3036	RegSvcs.exe
2876	chkdsk.exe
2876	chkdsk.exe
2876	chkdsk.exe
2876	chkdsk.exe
2876	chkdsk.exe
2876	chkdsk.exe
2876	chkdsk.exe
2876	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3036	RegSvcs.exe
3036	RegSvcs.exe
3036	RegSvcs.exe
2876	chkdsk.exe
2876	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3036	RegSvcs.exe
Token: SeDebugPrivilege	2876	chkdsk.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2860 wrote to memory of 2096	2860	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	29
PID 2860 wrote to memory of 2096	2860	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	29
PID 2860 wrote to memory of 2096	2860	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	29
PID 2860 wrote to memory of 2096	2860	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	29
PID 2860 wrote to memory of 3036	2860	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	31
PID 2860 wrote to memory of 3036	2860	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	31
PID 2860 wrote to memory of 3036	2860	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	31
PID 2860 wrote to memory of 3036	2860	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	31
PID 2860 wrote to memory of 3036	2860	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	31
PID 2860 wrote to memory of 3036	2860	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	31
PID 2860 wrote to memory of 3036	2860	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	31
PID 2860 wrote to memory of 3036	2860	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	31
PID 2860 wrote to memory of 3036	2860	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	31
PID 2860 wrote to memory of 3036	2860	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	31
PID 1220 wrote to memory of 2876	1220	Explorer.EXE	32
PID 1220 wrote to memory of 2876	1220	Explorer.EXE	32
PID 1220 wrote to memory of 2876	1220	Explorer.EXE	32
PID 1220 wrote to memory of 2876	1220	Explorer.EXE	32
PID 2876 wrote to memory of 2544	2876	chkdsk.exe	33
PID 2876 wrote to memory of 2544	2876	chkdsk.exe	33
PID 2876 wrote to memory of 2544	2876	chkdsk.exe	33
PID 2876 wrote to memory of 2544	2876	chkdsk.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1220
- C:\Users\Admin\AppData\Local\Temp\98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe
  "C:\Users\Admin\AppData\Local\Temp\98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2860
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yKszcAoHaHN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7E06.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2096
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3036
- C:\Windows\SysWOW64\chkdsk.exe
  "C:\Windows\SysWOW64\chkdsk.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2876
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp7E06.tmp

Filesize
1KB

MD5
94b81715b2e63cd7d474753b8772180a

SHA1
6c2c7bb16ac8cb9ad1d38f8d51a0fb647f3d7c4c

SHA256
6668e89d2f2bfb13280cfdf714c0beb37624623e427566383ab9c2d9b34b7386

SHA512
57a7a667326abbac02e057f43f18ceea8f91f3ba8d8b8d517a34ca5bab686eb77b7dbe42a6f102230ffdfa9ce9684b5fd5942e3986ba174744be4f8b7562d243

Download Submit
memory/1220-24-0x0000000004A40000-0x0000000004B03000-memory.dmp

Filesize
780KB

Download
memory/1220-28-0x0000000004A40000-0x0000000004B03000-memory.dmp

Filesize
780KB

Download
memory/1220-30-0x0000000002EE0000-0x0000000002FE0000-memory.dmp

Filesize
1024KB

Download
memory/2860-4-0x0000000073C4E000-0x0000000073C4F000-memory.dmp

Filesize
4KB

Download
memory/2860-5-0x0000000073C40000-0x000000007432E000-memory.dmp

Filesize
6.9MB

Download
memory/2860-6-0x0000000004FF0000-0x0000000005082000-memory.dmp

Filesize
584KB

Download
memory/2860-7-0x0000000000B40000-0x0000000000B8A000-memory.dmp

Filesize
296KB

Download
memory/2860-3-0x00000000004C0000-0x00000000004E6000-memory.dmp

Filesize
152KB

Download
memory/2860-2-0x0000000073C40000-0x000000007432E000-memory.dmp

Filesize
6.9MB

Download
memory/2860-0-0x0000000073C4E000-0x0000000073C4F000-memory.dmp

Filesize
4KB

Download
memory/2860-1-0x0000000000C10000-0x0000000000D22000-memory.dmp

Filesize
1.1MB

Download
memory/2860-18-0x0000000073C40000-0x000000007432E000-memory.dmp

Filesize
6.9MB

Download
memory/2876-27-0x0000000000080000-0x00000000000AE000-memory.dmp

Filesize
184KB

Download
memory/2876-26-0x0000000000860000-0x0000000000867000-memory.dmp

Filesize
28KB

Download
memory/2876-25-0x0000000000860000-0x0000000000867000-memory.dmp

Filesize
28KB

Download
memory/3036-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3036-22-0x0000000000370000-0x0000000000384000-memory.dmp

Filesize
80KB

Download
memory/3036-21-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3036-19-0x00000000009E0000-0x0000000000CE3000-memory.dmp

Filesize
3.0MB

Download
memory/3036-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3036-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3036-17-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads