MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2198c2bb61788ff27d22b8a16ff4ddbfc343d0c3f641ce8c86e42100d338a83b. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 13


Intelligence 13 IOCs YARA 3 File information Comments
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SHA256 hash: 2198c2bb61788ff27d22b8a16ff4ddbfc343d0c3f641ce8c86e42100d338a83b
SHA3-384 hash: 72a0491ab83004f5631c558277db7e406685415a4728027b7f57ed79c34f1a4b013ebd0ee04a197d7efc2cbc0afff627
SHA1 hash: b1971757c64ccaaaff17d4e5d7c6db4eb0843b2a
MD5 hash: 2ec6d3e0a7fe0d612b5ae232a01e7d2b
humanhash: one-salami-iowa-eight
File name:BL# BKKCM3215800.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:174'080 bytes
First seen:2022-07-12 00:18:41 UTC
Last seen:2022-07-13 11:12:34 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'596 x Formbook, 12'240 x SnakeKeylogger)
ssdeep 384:ntPHin5T3EUFFlCTIJBh2R5iS+o1mTdK5nGXliG2ogF9fU/9V/iOyiyuiVnfiSiF:tSlyD91qKMXZ2zfU/MnmzFR
TLSH T1140470497258E509DAD57638AFB1C9B41330AE9CAC195A7638E87FCF3AFD20B2501770
TrID 72.5% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.4% (.EXE) Win64 Executable (generic) (10523/12/4)
6.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.4% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 0000000000000000 (872 x AgentTesla, 496 x Formbook, 296 x RedLineStealer)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
5
# of downloads :
333
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
BL# BKKCM3215800.exe
Verdict:
Malicious activity
Analysis date:
2022-07-12 00:25:59 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/c627be18-1cd7-47c2-9267-3a5461a03bb3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/286411/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Reading critical registry keys
Launching cmd.exe command interpreter
Sending an HTTP GET request to an infection source
Enabling autorun by creating a file
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/62ccbe3481790e51fe596909/reports/ddf4b820-0bb4-4346-93d0-caae3b70b30d/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ea419c9b-5b02-4cbf-9df6-1b0d3b4e22b4
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1029085
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates an undocumented autostart registry key
Encrypted powershell cmdline option found
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected Generic Downloader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 661580 Sample: BL# BKKCM3215800.exe Startdate: 12/07/2022 Architecture: WINDOWS Score: 100 40 www.steemboard.xyz 2->40 52 Snort IDS alert for network traffic 2->52 54 Multi AV Scanner detection for domain / URL 2->54 56 Malicious sample detected (through community Yara rule) 2->56 58 14 other signatures 2->58 11 BL# BKKCM3215800.exe 15 7 2->11         started        signatures3 process4 dnsIp5 42 107.172.13.154, 49746, 80 AS-COLOCROSSINGUS United States 11->42 34 C:\Users\user\AppData\Roaming\...\adaobe.exe, PE32 11->34 dropped 36 C:\Users\user\...\adaobe.exe:Zone.Identifier, ASCII 11->36 dropped 38 C:\Users\user\...\BL# BKKCM3215800.exe.log, ASCII 11->38 dropped 66 Creates an undocumented autostart registry key 11->66 68 Encrypted powershell cmdline option found 11->68 70 Injects a PE file into a foreign processes 11->70 16 BL# BKKCM3215800.exe 11->16         started        19 powershell.exe 18 11->19         started        21 BL# BKKCM3215800.exe 11->21         started        file6 signatures7 process8 signatures9 44 Modifies the context of a thread in another process (thread injection) 16->44 46 Maps a DLL or memory area into another process 16->46 48 Sample uses process hollowing technique 16->48 50 Queues an APC in another process (thread injection) 16->50 23 explorer.exe 16->23 injected 25 conhost.exe 19->25         started        process10 process11 27 wlanext.exe 23->27         started        signatures12 60 Modifies the context of a thread in another process (thread injection) 27->60 62 Maps a DLL or memory area into another process 27->62 64 Tries to detect virtualization through RDTSC time measurements 27->64 30 cmd.exe 1 27->30         started        process13 process14 32 conhost.exe 30->32         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2198c2bb61788ff27d22b8a16ff4ddbfc343d0c3f641ce8c86e42100d338a83b/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-07-11 23:29:06 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=egmmfo3bpch7e7jcxcqw75g5x7buhugd6za45deg4qqqbuzyva5q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ba17 rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/220712-al64dsebhk/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Deletes itself
Formbook payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
2198c2bb61788ff27d22b8a16ff4ddbfc343d0c3f641ce8c86e42100d338a83b
MD5 hash:
2ec6d3e0a7fe0d612b5ae232a01e7d2b
SHA1 hash:
b1971757c64ccaaaff17d4e5d7c6db4eb0843b2a
Link:
https://www.unpac.me/results/ff4974f2-1eea-4d1a-9e9a-2eac9806e9c9/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/2198c2bb6178/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/2198c2bb61788ff27d22b8a16ff4ddbfc343d0c3f641ce8c86e42100d338a83b

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:INDICATOR_EXE_Packed_SmartAssembly
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with SmartAssembly
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Formbook

Executable exe 2198c2bb61788ff27d22b8a16ff4ddbfc343d0c3f641ce8c86e42100d338a83b

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/286411/

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