Malware Analysis Report

2024-11-13 14:08

Sample ID 240226-3zaxbsca4t
Target 636c32103ef487d1c30df530296f014b.exe
SHA256 c79f0b410c62adbad0d697c85f0f6cf786c61e1a1244090650440d8a09b90bbd
Tags
smokeloader backdoor trojan lumma stealer upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c79f0b410c62adbad0d697c85f0f6cf786c61e1a1244090650440d8a09b90bbd

Threat Level: Known bad

The file 636c32103ef487d1c30df530296f014b.exe was found to be: Known bad.

Malicious Activity Summary

smokeloader backdoor trojan lumma stealer upx

SmokeLoader

Lumma Stealer

UPX packed file

Executes dropped EXE

Deletes itself

Loads dropped DLL

Suspicious use of SetThreadContext

Unsigned PE

Checks SCSI registry key(s)

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of UnmapMainImage

Suspicious behavior: MapViewOfSection

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-02-26 23:56

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-02-26 23:56

Reported

2024-02-26 23:59

Platform

win7-20240220-en

Max time kernel

150s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

Description Indicator Process Target
N/A N/A N/A N/A

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe

"C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 selebration17io.io udp
RU 91.215.85.120:80 selebration17io.io tcp

Files

memory/2552-2-0x00000000001C0000-0x00000000001CB000-memory.dmp

memory/2552-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

memory/2552-3-0x0000000000400000-0x00000000022D1000-memory.dmp

memory/1092-4-0x0000000002D40000-0x0000000002D56000-memory.dmp

memory/2552-5-0x0000000000400000-0x00000000022D1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-02-26 23:56

Reported

2024-02-26 23:59

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

137s

Command Line

"C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe"

Signatures

Lumma Stealer

stealer lumma

SmokeLoader

trojan backdoor smokeloader

Deletes itself

Description Indicator Process Target
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\F4FF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\B0AF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\B0AF.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\regsvr32.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\B0AF.exe N/A

UPX packed file

upx
Description Indicator Process Target
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Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3928 set thread context of 2264 N/A C:\Users\Admin\AppData\Local\Temp\B0AF.exe C:\Users\Admin\AppData\Local\Temp\B0AF.exe

Checks SCSI registry key(s)

Description Indicator Process Target
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A N/A N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3352 wrote to memory of 4268 N/A N/A C:\Users\Admin\AppData\Local\Temp\F4FF.exe
PID 3352 wrote to memory of 4268 N/A N/A C:\Users\Admin\AppData\Local\Temp\F4FF.exe
PID 3352 wrote to memory of 4268 N/A N/A C:\Users\Admin\AppData\Local\Temp\F4FF.exe
PID 3352 wrote to memory of 4912 N/A N/A C:\Windows\system32\regsvr32.exe
PID 3352 wrote to memory of 4912 N/A N/A C:\Windows\system32\regsvr32.exe
PID 4912 wrote to memory of 3128 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4912 wrote to memory of 3128 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 4912 wrote to memory of 3128 N/A C:\Windows\system32\regsvr32.exe C:\Windows\SysWOW64\regsvr32.exe
PID 3352 wrote to memory of 3928 N/A N/A C:\Users\Admin\AppData\Local\Temp\B0AF.exe
PID 3352 wrote to memory of 3928 N/A N/A C:\Users\Admin\AppData\Local\Temp\B0AF.exe
PID 3352 wrote to memory of 3928 N/A N/A C:\Users\Admin\AppData\Local\Temp\B0AF.exe
PID 3928 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\B0AF.exe C:\Users\Admin\AppData\Local\Temp\B0AF.exe
PID 3928 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\B0AF.exe C:\Users\Admin\AppData\Local\Temp\B0AF.exe
PID 3928 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\B0AF.exe C:\Users\Admin\AppData\Local\Temp\B0AF.exe
PID 3928 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\B0AF.exe C:\Users\Admin\AppData\Local\Temp\B0AF.exe
PID 3928 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\B0AF.exe C:\Users\Admin\AppData\Local\Temp\B0AF.exe
PID 3928 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\B0AF.exe C:\Users\Admin\AppData\Local\Temp\B0AF.exe
PID 3928 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\B0AF.exe C:\Users\Admin\AppData\Local\Temp\B0AF.exe
PID 3928 wrote to memory of 2264 N/A C:\Users\Admin\AppData\Local\Temp\B0AF.exe C:\Users\Admin\AppData\Local\Temp\B0AF.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe

"C:\Users\Admin\AppData\Local\Temp\636c32103ef487d1c30df530296f014b.exe"

C:\Users\Admin\AppData\Local\Temp\F4FF.exe

C:\Users\Admin\AppData\Local\Temp\F4FF.exe

C:\Windows\system32\regsvr32.exe

regsvr32 /s C:\Users\Admin\AppData\Local\Temp\61F2.dll

C:\Windows\SysWOW64\regsvr32.exe

/s C:\Users\Admin\AppData\Local\Temp\61F2.dll

C:\Users\Admin\AppData\Local\Temp\B0AF.exe

C:\Users\Admin\AppData\Local\Temp\B0AF.exe

C:\Users\Admin\AppData\Local\Temp\B0AF.exe

C:\Users\Admin\AppData\Local\Temp\B0AF.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 selebration17io.io udp
RU 91.215.85.120:80 selebration17io.io tcp
US 8.8.8.8:53 120.85.215.91.in-addr.arpa udp
US 8.8.8.8:53 resergvearyinitiani.shop udp
US 104.21.94.2:443 resergvearyinitiani.shop tcp
US 8.8.8.8:53 technologyenterdo.shop udp
US 172.67.180.132:443 technologyenterdo.shop tcp
US 8.8.8.8:53 lighterepisodeheighte.fun udp
US 8.8.8.8:53 problemregardybuiwo.fun udp
US 8.8.8.8:53 132.180.67.172.in-addr.arpa udp
US 8.8.8.8:53 2.94.21.104.in-addr.arpa udp
US 8.8.8.8:53 detectordiscusser.shop udp
US 172.67.195.126:443 detectordiscusser.shop tcp
US 8.8.8.8:53 edurestunningcrackyow.fun udp
US 8.8.8.8:53 126.195.67.172.in-addr.arpa udp
US 8.8.8.8:53 pooreveningfuseor.pw udp
US 8.8.8.8:53 turkeyunlikelyofw.shop udp
US 172.67.202.191:443 turkeyunlikelyofw.shop tcp
US 8.8.8.8:53 associationokeo.shop udp
US 104.21.10.242:443 associationokeo.shop tcp
US 8.8.8.8:53 191.202.67.172.in-addr.arpa udp
US 8.8.8.8:53 242.10.21.104.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp

Files

memory/3884-1-0x0000000002540000-0x0000000002640000-memory.dmp

memory/3884-2-0x0000000002470000-0x000000000247B000-memory.dmp

memory/3884-3-0x0000000000400000-0x00000000022D1000-memory.dmp

memory/3352-4-0x00000000027A0000-0x00000000027B6000-memory.dmp

memory/3884-5-0x0000000000400000-0x00000000022D1000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\F4FF.exe

MD5 0904e849f8483792ef67991619ece915
SHA1 58d04535efa58effb3c5ed53a2462aa96d676b79
SHA256 fca631b3198194fcc0c619b5690dbde2e9f38afb1b978bab8ea3f92b572ce1ef
SHA512 258fc59050aa455ad56167dd1bbe5e098eefc0f3e950c90d89bac2aa74abb5cfa1710d866c0e28e58dcb2f914736470a4dd9838dd6412b633aee87d71b867cf5

memory/4268-15-0x0000000000E90000-0x0000000000E91000-memory.dmp

memory/4268-16-0x0000000000080000-0x000000000092F000-memory.dmp

memory/4268-17-0x0000000000080000-0x000000000092F000-memory.dmp

memory/4268-19-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

memory/4268-20-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

memory/4268-21-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

memory/4268-22-0x0000000000080000-0x000000000092F000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\61F2.dll

MD5 7aecbe510817ee9636a5bcbff0ee5fdd
SHA1 6a3f27f7789ccf1b19c948774d84c865a9ac6825
SHA256 b4ee4aa0b664fe673986399de8105c600330339971bd8583177fa38dddd13aac
SHA512 a681efb97745aed5f73d197730049ff80798d133245d8e8bcb0faf3532a9ef440d1687016c9f666c1f56479c7db003b0388e0a69bb2626f34c86046bc477edae

memory/3128-26-0x0000000000FD0000-0x0000000000FD6000-memory.dmp

memory/3128-27-0x0000000010000000-0x000000001020A000-memory.dmp

memory/3128-30-0x0000000003050000-0x0000000003179000-memory.dmp

memory/3128-31-0x0000000003180000-0x000000000328E000-memory.dmp

memory/3128-32-0x0000000003180000-0x000000000328E000-memory.dmp

memory/3128-34-0x0000000003180000-0x000000000328E000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\B0AF.exe

MD5 0642278745fba16597e65937093b4610
SHA1 9409ea6dd562c7b66b1fbd73ba5af5974b21b4af
SHA256 040ae9c155ffde932d4c62f1334f4afcc6cabeb991b3602f8cea7747c64c1755
SHA512 b8560457bf9cc89ba39203476cbbe1c2a7e31ede4af0ff022c8fab232ad7b739b73ff4f02b9084dea147336d6e11e46940a985fbf2141280f4cf0716692ddca5

C:\Users\Admin\AppData\Local\Temp\B0AF.exe

MD5 398ab69b1cdc624298fbc00526ea8aca
SHA1 b2c76463ae08bb3a08accfcbf609ec4c2a9c0821
SHA256 ca827a18753cf8281d57b7dff32488c0701fe85af56b59eab5a619ae45b5f0be
SHA512 3b222a46a8260b7810e2e6686b7c67b690452db02ed1b1e75990f4ac1421ead9ddc21438a419010169258b1ae4b206fbfa22bb716b83788490b7737234e42739

memory/3128-40-0x0000000010000000-0x000000001020A000-memory.dmp

memory/3928-41-0x0000000003740000-0x00000000038FC000-memory.dmp

memory/3928-42-0x0000000003A00000-0x0000000003BB7000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\B0AF.exe

MD5 3a57dc900df7d0c26658c8359e9cf0ed
SHA1 13bf3442ea417341c42a99fc00627fda7d3cf623
SHA256 d86b53f57b7e62d4e0d02d9566e6a893c2ca85d7b81c8623d3f362e61fc4cf84
SHA512 57153a2e069a8ce6879529c6bc47e6ef970796bd6d1e354e5f7fd231f6408e2c0935b3c0f1b83f96d9ae9aff715dd9a2d7f058ed7f2afd9702348cbb5cdc893e

memory/2264-46-0x0000000000400000-0x0000000000848000-memory.dmp

memory/2264-47-0x0000000000400000-0x0000000000848000-memory.dmp

memory/2264-43-0x0000000000400000-0x0000000000848000-memory.dmp

memory/2264-48-0x0000000000400000-0x0000000000848000-memory.dmp

memory/2264-49-0x0000000000400000-0x0000000000848000-memory.dmp

memory/2264-50-0x0000000000400000-0x0000000000848000-memory.dmp

memory/2264-53-0x0000000000D60000-0x0000000000D66000-memory.dmp

memory/3128-65-0x0000000003180000-0x000000000328E000-memory.dmp

memory/3128-66-0x0000000003290000-0x000000000483F000-memory.dmp

memory/3128-67-0x0000000004840000-0x000000000493C000-memory.dmp

memory/2264-68-0x0000000002CF0000-0x0000000002E19000-memory.dmp

memory/3128-69-0x0000000004940000-0x0000000004A3E000-memory.dmp

memory/3128-72-0x0000000004940000-0x0000000004A3E000-memory.dmp

memory/3128-73-0x0000000000EB0000-0x0000000000EC2000-memory.dmp

memory/3128-75-0x00000000359A0000-0x00000000359EE000-memory.dmp

memory/2264-77-0x0000000002E20000-0x0000000002F2E000-memory.dmp

memory/2264-81-0x0000000002E20000-0x0000000002F2E000-memory.dmp