MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 737b1dfa1329a868ec8f854a6bce10cafa4e0e04d16b2e73db1e9fb29e54d2fd. 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: 17


Intelligence 17 IOCs YARA 2 File information Comments
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SHA256 hash: 737b1dfa1329a868ec8f854a6bce10cafa4e0e04d16b2e73db1e9fb29e54d2fd
SHA3-384 hash: 2bd16282c3ff01ce64300d5ca3402d3dd75eb4524593181361f182a50765bec3e71ab2fd32aacc5433be2ef240192c70
SHA1 hash: 790c2635d1f5df9cc5675de70827c5afebed3da5
MD5 hash: 161d9dcf85eac5975db6d6536c74d015
humanhash: beryllium-stairway-happy-august
File name:PTqqllNmmYY1uyW.exe
Download: download sample
Signature Formbook
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File size:652'288 bytes
First seen:2022-10-22 09:29:44 UTC
Last seen:2022-10-24 19:07:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'752 x AgentTesla, 19'658 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 12288:R1a6wGCQo4ERM2paQYVDcPgX+w+f1ptdIIP3rvc15zbtnx6ja2uDKuxO:yfDgkfDdPr01wluDXx
TLSH T172D4EFFD57A40F57CD3C927EC4A0409973F4F89E1521F29E3D8334A90AE5B9E02AD692
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon dcc2ccecececc2dc (3 x AgentTesla, 1 x RemcosRAT, 1 x Formbook)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
211
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
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ID:
1
File name:
PTqqllNmmYY1uyW.exe
Verdict:
Malicious activity
Analysis date:
2022-10-22 09:30:40 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/5ea8760b-4f10-4fcc-b06d-6424f46c11f0

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
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Link:
https://www.capesandbox.com/analysis/322598/
Detection(s):
SecuriteInfo.com.Trojan.Siggen18.62055.12394.1801.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Unauthorized injection to a recently created process
Creating a file
Searching for synchronization primitives
Launching a process
Reading critical registry keys
Launching cmd.exe command interpreter
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6353b81c898b0652a4b9576e/reports/0552b4e0-82a3-4a0b-a6b3-f0dc8ea7269a/overview
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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/4cf4d6ec-fdb1-4c6f-a5e4-5622812680e0
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1095422
Signature
Antivirus / Scanner detection for submitted sample
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
System process connects to network (likely due to code injection or exploit)
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 728063 Sample: PTqqllNmmYY1uyW.exe Startdate: 22/10/2022 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic 2->36 38 Malicious sample detected (through community Yara rule) 2->38 40 Antivirus / Scanner detection for submitted sample 2->40 42 7 other signatures 2->42 10 PTqqllNmmYY1uyW.exe 3 2->10         started        process3 file4 30 C:\Users\user\...\PTqqllNmmYY1uyW.exe.log, ASCII 10->30 dropped 52 Tries to detect virtualization through RDTSC time measurements 10->52 54 Injects a PE file into a foreign processes 10->54 14 PTqqllNmmYY1uyW.exe 10->14         started        17 PTqqllNmmYY1uyW.exe 10->17         started        signatures5 process6 signatures7 56 Modifies the context of a thread in another process (thread injection) 14->56 58 Maps a DLL or memory area into another process 14->58 60 Sample uses process hollowing technique 14->60 62 Queues an APC in another process (thread injection) 14->62 19 explorer.exe 14->19 injected process8 dnsIp9 32 shops.myshopify.com 23.227.38.74, 49700, 80 CLOUDFLARENETUS Canada 19->32 34 www.klixyo.com 19->34 44 System process connects to network (likely due to code injection or exploit) 19->44 23 cmstp.exe 19->23         started        signatures10 process11 signatures12 46 Modifies the context of a thread in another process (thread injection) 23->46 48 Maps a DLL or memory area into another process 23->48 50 Tries to detect virtualization through RDTSC time measurements 23->50 26 cmd.exe 1 23->26         started        process13 process14 28 conhost.exe 26->28         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/737b1dfa1329a868ec8f854a6bce10cafa4e0e04d16b2e73db1e9fb29e54d2fd/
Threat name:
ByteCode-MSIL.Trojan.FormBook
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Status:
Malicious
First seen:
2022-10-21 16:53:10 UTC
File Type:
PE (.Net Exe)
Extracted files:
19
AV detection:
23 of 26 (88.46%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=on5r36qtfgugr3epqvfgxtqqzl5e4dqe2fvs4463d2p3fhsu2l6q._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:g47e rat spyware stealer trojan
Link:
https://tria.ge/reports/221022-lgg49acah9/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Blocklisted process makes network request
Formbook payload
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/0b5279bf-5d72-42f5-b694-b0f86ff85f28
Unpacked files
SH256 hash:
00ba906c2cbf39e9ce07fbd3c9a516919da5cf3aa6500e3896a1d8cfbe3d6ea4
MD5 hash:
febe6442602cc5df18074ff14f4eddb5
SHA1 hash:
9b9e5d212672cdbdeed7d36bf90b6f0116e70476
Detections:
FormBook
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win_formbook_auto
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win_formbook_g0
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Link:
https://www.unpac.me/results/9285455d-7757-456a-b80b-990e693eced6/
Parent samples :
3c35a04edd86465c4f752711854c9bc1a902395c647067b5e88c53895654906f
737b1dfa1329a868ec8f854a6bce10cafa4e0e04d16b2e73db1e9fb29e54d2fd
93c2315009ff086b25c1000011c5097117f466d04866bebd396989b59b35835e
76c7d2803113f28e42c8421072c002e0b4bd72ecfec7e2727768931cfd328fa3
51a2542d1b273f9d3d1c1b8817d77451c46bdb03e22c7b25c05f383b289305d0
SH256 hash:
4f80ddfe49b270f801ab44aa899153bbe2a0fb93abed0f9fc992f74ff6ab4fde
MD5 hash:
f4ba8570299eabf8fe2d02cc1dc0606a
SHA1 hash:
5d7add32313074f5a1e9b4ab379298dee8b6217e
Link:
https://www.unpac.me/results/9285455d-7757-456a-b80b-990e693eced6/
SH256 hash:
97f7178a9527d35e71dbac4d935ee49dc9295f4ce07bde1a1b72c5748a903e7c
MD5 hash:
220a89d461c3e7d4a19f344a2718ffb3
SHA1 hash:
1d120c59a2eb9e416982fed88bb9963c141a095a
Link:
https://www.unpac.me/results/9285455d-7757-456a-b80b-990e693eced6/
SH256 hash:
737b1dfa1329a868ec8f854a6bce10cafa4e0e04d16b2e73db1e9fb29e54d2fd
MD5 hash:
161d9dcf85eac5975db6d6536c74d015
SHA1 hash:
790c2635d1f5df9cc5675de70827c5afebed3da5
Link:
https://www.unpac.me/results/9285455d-7757-456a-b80b-990e693eced6/
Malware family:
FormBook
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Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/737b1dfa1329/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.55
Link:
https://yomi.yoroi.company/submissions/737b1dfa1329a868ec8f854a6bce10cafa4e0e04d16b2e73db1e9fb29e54d2fd

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:pe_imphash
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Rule name:Skystars_Malware_Imphash
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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 737b1dfa1329a868ec8f854a6bce10cafa4e0e04d16b2e73db1e9fb29e54d2fd

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/322598/

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