MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37ab61ae86c08d6a684fff573cbd927b144dfac5006d660cc3cb58676fb15c2c. 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: 16


Intelligence 16 IOCs YARA 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 37ab61ae86c08d6a684fff573cbd927b144dfac5006d660cc3cb58676fb15c2c
SHA3-384 hash: 3bff7263528348175e5d59ca7559e3eb7d56fa3f077eadd215f378642f9ac9b4715a5bbfe4ee9db8d37575956efb11f1
SHA1 hash: 3b3497df3686f73511155adcc642a577c446b7dd
MD5 hash: e9107562ddded0cb75ef770944507471
humanhash: west-uniform-idaho-network
File name:REQ#202402027.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:674'304 bytes
First seen:2024-02-21 06:23:49 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:KdA1rEwTHHTxwjNq8UeZV/I4Q1KO3sfpYcydYI02zvF11:r9EWH+q8UefdQ1P3sGcyalmvF1
TLSH T1FFE4231239DC8BB2C6B45EB76B3894110F717A163E13E7EE0CD744CA0AE6B495A21737
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4504/4/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 4d4d0b0f0f0f0f0f (5 x AgentTesla, 1 x Formbook)
Reporter threatcat_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
425
Origin country :
CH CH
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/477214/
Detection(s):
Porcupine.Malware.58887.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Creating a file
Launching cmd.exe command interpreter
Setting browser functions hooks
Forced shutdown of a system process
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Unauthorized injection to a browser process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65d59703c5e1a083fbf3ac39/reports/feebe408-68d6-41be-8048-b097b927dd1e/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/37ab61ae86c08d6a684fff573cbd927b144dfac5006d660cc3cb58676fb15c2c
Result
Verdict:
MALICIOUS
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/6a6c9d4a-54d2-4448-a9eb-99f245ed514a
Result
Threat name:
FormBook, PureLog Stealer
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1395869
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Yara detected PureLog Stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1395869 Sample: REQ#202402027.exe Startdate: 21/02/2024 Architecture: WINDOWS Score: 100 34 www.mixchain.online 2->34 36 www.jati88ori.info 2->36 38 5 other IPs or domains 2->38 46 Snort IDS alert for network traffic 2->46 48 Multi AV Scanner detection for domain / URL 2->48 50 Found malware configuration 2->50 52 14 other signatures 2->52 11 REQ#202402027.exe 4 2->11         started        signatures3 process4 signatures5 56 Adds a directory exclusion to Windows Defender 11->56 14 RegSvcs.exe 11->14         started        17 powershell.exe 19 11->17         started        process6 signatures7 64 Modifies the context of a thread in another process (thread injection) 14->64 66 Maps a DLL or memory area into another process 14->66 68 Sample uses process hollowing technique 14->68 70 2 other signatures 14->70 19 explorer.exe 37 1 14->19 injected 23 conhost.exe 17->23         started        25 WmiPrvSE.exe 17->25         started        process8 dnsIp9 40 www.jati88ori.info 154.83.2.143, 49714, 80 ST-BGPUS Seychelles 19->40 42 alandalusfoods.com 81.88.48.71, 49713, 80 REGISTER-ASIT Italy 19->42 44 best-smartiptv.com 198.54.120.156, 49712, 80 NAMECHEAP-NETUS United States 19->44 54 System process connects to network (likely due to code injection or exploit) 19->54 27 raserver.exe 19->27         started        signatures10 process11 signatures12 58 Modifies the context of a thread in another process (thread injection) 27->58 60 Maps a DLL or memory area into another process 27->60 62 Tries to detect virtualization through RDTSC time measurements 27->62 30 cmd.exe 1 27->30         started        process13 process14 32 conhost.exe 30->32         started       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/37ab61ae86c08d6a684fff573cbd927b144dfac5006d660cc3cb58676fb15c2c
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/37ab61ae86c08d6a684fff573cbd927b144dfac5006d660cc3cb58676fb15c2c/
Threat name:
ByteCode-MSIL.Trojan.Swotter
Create hunting rule
Status:
Malicious
First seen:
2024-02-21 06:24:09 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=g6vwdlugycgwu2cp75ltzpmspmke36wfabwwmdgdznmgo35rlqwa._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:ge22 rat spyware stealer trojan
Link:
https://tria.ge/reports/240221-g52fksch49/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Formbook payload
Formbook
Unpacked files
SH256 hash:
d081744a262532fdb32075ddf1bc86e0751d434664f97d62186a68d9f103549f
MD5 hash:
3a415908f25c821db31827b48ddbcf54
SHA1 hash:
caecb6ee2e0ae7c2b9f9f22c952d1c8e0b4ace38
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Formbook
Create hunting rule
Link:
https://www.unpac.me/results/198b6ba9-3e66-40b6-808f-961aa26ae54f/
Parent samples :
dbb3670e8ce15f0ec4f50b96b94e74e6e5dc682eccb4308ffd0eaf122b799b7b
3c89aeb703a2550cc4824ea72fb1003cb74433c85387717afd025fa584865d94
8192cce9a032b0e6024194cf3a38858bc8c9e620144742a8373d961ca22927fe
37ab61ae86c08d6a684fff573cbd927b144dfac5006d660cc3cb58676fb15c2c
0a0070a22c28587c932cde74814087abf7089964f35f51c350da68cc3ab9684c
6154730b63778ae67589ab71efd7459b0e4463c419d2e649b0d2af0f67241e28
SH256 hash:
0aef8666d7d788a05edf348a8dd11c2c1c7c64caaf92e2f7e49fcdc45d76d693
MD5 hash:
dd9ebf6514d27534c7a1571b8500dfc1
SHA1 hash:
e509ae8b372b34865895ced5377b89c7862d4a57
Link:
https://www.unpac.me/results/198b6ba9-3e66-40b6-808f-961aa26ae54f/
SH256 hash:
72638f4b30cc9dab51d31216991957bf1cd118b8a8743227b3e8f9c4805f7628
MD5 hash:
2a8240bba06e832ee5d136a0a7e5b5b9
SHA1 hash:
de49d9b33004a4a622a4279b3ee2b3e3e5cd012b
Link:
https://www.unpac.me/results/198b6ba9-3e66-40b6-808f-961aa26ae54f/
SH256 hash:
ec592062c41d26d7046ab135fbabaf80e69900ba940ca654261cda17109f8769
MD5 hash:
09f7fb78314d30bf7c69d72caa9da978
SHA1 hash:
5536e0f86fe6e36f11e5ba03a8f559675dd82f30
Link:
https://www.unpac.me/results/198b6ba9-3e66-40b6-808f-961aa26ae54f/
SH256 hash:
42e5bbee4b498550f505c1232326adbf9d5d23c7e90174eb142b4963b879fe7b
MD5 hash:
100a8095e042378d2c227eb0ff37b6d4
SHA1 hash:
32c4a6457d7c01e9e135c3750d571114bc0ef3a0
Link:
https://www.unpac.me/results/198b6ba9-3e66-40b6-808f-961aa26ae54f/
SH256 hash:
37ab61ae86c08d6a684fff573cbd927b144dfac5006d660cc3cb58676fb15c2c
MD5 hash:
e9107562ddded0cb75ef770944507471
SHA1 hash:
3b3497df3686f73511155adcc642a577c446b7dd
Link:
https://www.unpac.me/results/198b6ba9-3e66-40b6-808f-961aa26ae54f/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/37ab61ae86c0/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.87
Link:
https://yomi.yoroi.company/submissions/37ab61ae86c08d6a684fff573cbd927b144dfac5006d660cc3cb58676fb15c2c

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:DebuggerCheck__GlobalFlags
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SEH__vectored
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
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 37ab61ae86c08d6a684fff573cbd927b144dfac5006d660cc3cb58676fb15c2c

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/477214/

Comments