MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 37ae91a0976d913bc1a194207829dc5460afd7b12d4ee22a69129772d151f156. 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: 18


Intelligence 18 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 37ae91a0976d913bc1a194207829dc5460afd7b12d4ee22a69129772d151f156
SHA3-384 hash: 90f043ad61f97b6c3777c4130d906e0a37ede2f97a8e4a4985f8800d5f65853eeb488c60d09c471f679bcce86f7dea3e
SHA1 hash: ebb6d4d8f549454a86b1891f34132f5afaf78023
MD5 hash: 33538e7c5d5548e4dca5e5ca386d89ac
humanhash: wisconsin-august-alanine-river
File name:SOA.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:354'826 bytes
First seen:2023-07-05 15:47:58 UTC
Last seen:2023-07-06 13:06:20 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 427 x GuLoader)
ssdeep 6144:vYa6eMFOhQcM1hCTP5CqA6E/6SQIxka3ZkaL6VI1EUPt/gwNST8dRI6x:vYgM81YhoNyvXB3ZXL62bV/gwGo
Threatray 3'323 similar samples on MalwareBazaar
TLSH T14D74220CA9B0D413C8B24236DFE69A1A3DBDB51618C621570B321BDA7D7A3E5D90FB24
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla)
Reporter cocaman
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
4
# of downloads :
281
Origin country :
CH CH
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
SOA.exe
Verdict:
Malicious activity
Analysis date:
2023-07-05 15:48:59 UTC
Tags:
formbook xloader trojan stealer
Link:
https://app.any.run/tasks/4ec5a5f6-1f52-43cc-a7ca-5dee46f4b872

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/408070/
Detection(s):
Sanesecurity.Rogue.0hr.20230705-1033.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a file
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Restart of the analyzed sample
Launching a process
Сreating synchronization primitives
Launching cmd.exe command interpreter
Sending a custom TCP request
Setting browser functions hooks
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Unauthorized injection to a system process
Unauthorized injection to a browser process
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/95657/overview
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
Link:
https://www.filescan.io/uploads/64a590b46647cd2df844c084/reports/83c9ffe0-ae45-4ff2-96e6-8e7978c2da28/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/37ae91a0976d913bc1a194207829dc5460afd7b12d4ee22a69129772d151f156
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/734612df-94c5-484e-8246-3042dad2d846
Result
Threat name:
FormBook, NSISDropper
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1267440
Signature
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
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 dropped file
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 virtualization through RDTSC time measurements
Yara detected FormBook
Yara detected NSISDropper
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1267440 Sample: SOA.exe Startdate: 05/07/2023 Architecture: WINDOWS Score: 100 48 Snort IDS alert for network traffic 2->48 50 Found malware configuration 2->50 52 Malicious sample detected (through community Yara rule) 2->52 54 7 other signatures 2->54 10 SOA.exe 1 21 2->10         started        process3 file4 38 C:\Users\user\AppData\Roaming\...\foktcx.exe, PE32 10->38 dropped 40 C:\Users\user\AppData\Local\...\tosoerpu.dll, PE32 10->40 dropped 70 Detected unpacking (changes PE section rights) 10->70 72 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 10->72 74 Maps a DLL or memory area into another process 10->74 76 Tries to detect virtualization through RDTSC time measurements 10->76 14 SOA.exe 10->14         started        signatures5 process6 signatures7 84 Modifies the context of a thread in another process (thread injection) 14->84 86 Maps a DLL or memory area into another process 14->86 88 Sample uses process hollowing technique 14->88 90 Queues an APC in another process (thread injection) 14->90 17 explorer.exe 10 26 14->17 injected process8 dnsIp9 42 www.airrests.com 17->42 44 www.ccxx0.com 104.245.239.232, 49705, 80 QUICKPACKETUS United States 17->44 46 10 other IPs or domains 17->46 56 System process connects to network (likely due to code injection or exploit) 17->56 21 foktcx.exe 19 17->21         started        25 svchost.exe 17->25         started        27 wscript.exe 17->27         started        signatures10 process11 file12 36 C:\Users\user\AppData\Local\...\tosoerpu.dll, PE32 21->36 dropped 58 Multi AV Scanner detection for dropped file 21->58 60 Detected unpacking (changes PE section rights) 21->60 62 Machine Learning detection for dropped file 21->62 29 foktcx.exe 21->29         started        64 Modifies the context of a thread in another process (thread injection) 25->64 66 Maps a DLL or memory area into another process 25->66 68 Tries to detect virtualization through RDTSC time measurements 25->68 32 cmd.exe 1 25->32         started        signatures13 process14 signatures15 78 Modifies the context of a thread in another process (thread injection) 29->78 80 Maps a DLL or memory area into another process 29->80 82 Sample uses process hollowing technique 29->82 34 conhost.exe 32->34         started        process16
Gathering data
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-07-05 08:54:49 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=g6xjdiexnwitxqnbsqqhqko4krqk7v5rfvhoektjcklxfukr6fla._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
215bf08032eb73c5e0b50bcce07def909e22f769315b0f90ed6cec87b28d44f6
Formbook
221f3d1fe2ec39b9854c584a51fa3cd49f23995f8ae99c8c7d8e2efa85bb38b0
Formbook
8e0884e51a92a725d4d5da82ba69173c4402d7030421d0aa65f40245c2795485
Formbook
ec9d091c881ad4da6f5e77f947c2723b1aa374fbf373931871c767dfb9cabb0e
Formbook
fa3a477577604a91938f7650b04d3dfaa1d8ec12578d3bb2618817529c8b5797
Formbook
+ 3'313 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:s28y persistence rat spyware stealer trojan
Link:
https://tria.ge/reports/230705-s8rlbsdf93/
Behaviour
Enumerates system info in registry
Gathers network information
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
Adds Run key to start application
Deletes itself
Loads dropped DLL
Formbook payload
Formbook
Unpacked files
SH256 hash:
2c92c3a13530fbcd3a2768af8671311c3fcf878626ed24febdc65c76cbeaeaf1
MD5 hash:
57ba313b829018ef160b67e61a5a48ba
SHA1 hash:
91aed3316a773ffb22f738bd3b01e10d3803a1f3
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/32b9fc60-5f8c-4c79-9f06-7d93bbd6eacf/
Parent samples :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 hash:
93a7314ba250adfa2136a15fc8c77acc52f37599f198b31f8badf45b09e156e3
MD5 hash:
ad86826a6fd9065f818a2934d8ee57d5
SHA1 hash:
0d749f90c7446ab03fff234baf6fe21b6686ef9a
Link:
https://www.unpac.me/results/32b9fc60-5f8c-4c79-9f06-7d93bbd6eacf/
SH256 hash:
2c92c3a13530fbcd3a2768af8671311c3fcf878626ed24febdc65c76cbeaeaf1
MD5 hash:
57ba313b829018ef160b67e61a5a48ba
SHA1 hash:
91aed3316a773ffb22f738bd3b01e10d3803a1f3
Detections:
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
FormBook
Create hunting rule
win_formbook_w0
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/32b9fc60-5f8c-4c79-9f06-7d93bbd6eacf/
Parent samples :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 hash:
93a7314ba250adfa2136a15fc8c77acc52f37599f198b31f8badf45b09e156e3
MD5 hash:
ad86826a6fd9065f818a2934d8ee57d5
SHA1 hash:
0d749f90c7446ab03fff234baf6fe21b6686ef9a
Link:
https://www.unpac.me/results/32b9fc60-5f8c-4c79-9f06-7d93bbd6eacf/
SH256 hash:
37ae91a0976d913bc1a194207829dc5460afd7b12d4ee22a69129772d151f156
MD5 hash:
33538e7c5d5548e4dca5e5ca386d89ac
SHA1 hash:
ebb6d4d8f549454a86b1891f34132f5afaf78023
Link:
https://www.unpac.me/results/32b9fc60-5f8c-4c79-9f06-7d93bbd6eacf/
Malware family:
XLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/37ae91a0976d/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/37ae91a0976d913bc1a194207829dc5460afd7b12d4ee22a69129772d151f156

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

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

Malspam

Formbook

zip c8df2092a5413f2b0c764acafceb0d548ca4dd7678210e55ac0d79d2a8074225

Formbook

Executable exe 37ae91a0976d913bc1a194207829dc5460afd7b12d4ee22a69129772d151f156

(this sample)

  
Delivery method
Other
  
Dropped by
SHA256 c8df2092a5413f2b0c764acafceb0d548ca4dd7678210e55ac0d79d2a8074225
Cape
Cape
https://www.capesandbox.com/analysis/408070/
  
Dropped by
SHA256 09d5670d1245b635c357986fab9f0c2d1c5c56650bd2432fe3e985afc2835770
  
Dropped by
MD5 6afe64155cdf16dcf0753282c32ae279
  
Dropped by
MD5 12a5ba51dddf12186814082e05ee8fce

Comments