lumma | a26dae1a0da4d8849489b49e037bfc66d1efe72182a35ecb99d5d8e41fbf4b17

Analysis

max time kernel
123s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
23-12-2024 15:21

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General

Target

procexp.exe
Size

5.2MB
MD5

4cd37c393016ec28159c17dc3997c0b3
SHA1

6ee17584fdd59ea2fc2c3edcac56f9945a4e5148
SHA256

a26dae1a0da4d8849489b49e037bfc66d1efe72182a35ecb99d5d8e41fbf4b17
SHA512

05658e37284bf3619a2aa407d54a1a9de65e498a4cd8f6c90b88eeab1130e119d8cba9e29206c4ad6ea340894db23c64d1cf88f9f9fb4668b17414635458f23b
SSDEEP

98304:5hH/750kD6/qbDSXUx/ZZdx3+kyR9xPhCtArzQQujtKKIdJdOBXai4MbU7KPv:51dTSqA+DjSfEtsGtKKIdr6qiBo7s

Score

10^/10

lumma vidar credential_access discovery stealer

Malware Config

Extracted

Family

lumma

Signatures

Detect Vidar Stealer 6 IoCs

stealer

resource	yara_rule
behavioral1/memory/1240-26-0x0000000000430000-0x0000000000669000-memory.dmp	family_vidar_v7
behavioral1/memory/1240-27-0x0000000000430000-0x0000000000669000-memory.dmp	family_vidar_v7
behavioral1/memory/2148-55-0x0000000000400000-0x0000000000639000-memory.dmp	family_vidar_v7
behavioral1/memory/2148-54-0x0000000000400000-0x0000000000639000-memory.dmp	family_vidar_v7
behavioral1/memory/2148-193-0x0000000000400000-0x0000000000639000-memory.dmp	family_vidar_v7
behavioral1/memory/2148-194-0x0000000000400000-0x0000000000639000-memory.dmp	family_vidar_v7

Lumma Stealer, LummaC
Lumma or LummaC is an infostealer written in C++ first seen in August 2022.
stealer lumma
Lumma family
lumma
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Vidar family
vidar
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2856 set thread context of 1076	2856	procexp.exe	30
PID 2856 set thread context of 2148	2856	procexp.exe	32
PID 1076 set thread context of 1560	1076	AddInProcess32.exe	33

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	procexp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AddInProcess32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AddInProcess32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AddInProcess32.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	AddInProcess32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	AddInProcess32.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2808	timeout.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2856	procexp.exe
2856	procexp.exe
2856	procexp.exe
1076	AddInProcess32.exe
1076	AddInProcess32.exe
2856	procexp.exe
2856	procexp.exe
1076	AddInProcess32.exe
2148	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2856	procexp.exe
Token: SeDebugPrivilege	1076	AddInProcess32.exe

Suspicious use of WriteProcessMemory 49 IoCs

description	pid	Process	procid_target
PID 2856 wrote to memory of 1076	2856	procexp.exe	30
PID 2856 wrote to memory of 1076	2856	procexp.exe	30
PID 2856 wrote to memory of 1076	2856	procexp.exe	30
PID 2856 wrote to memory of 1076	2856	procexp.exe	30
PID 2856 wrote to memory of 1076	2856	procexp.exe	30
PID 2856 wrote to memory of 1076	2856	procexp.exe	30
PID 2856 wrote to memory of 1076	2856	procexp.exe	30
PID 2856 wrote to memory of 1076	2856	procexp.exe	30
PID 2856 wrote to memory of 1076	2856	procexp.exe	30
PID 2856 wrote to memory of 1240	2856	procexp.exe	31
PID 2856 wrote to memory of 1240	2856	procexp.exe	31
PID 2856 wrote to memory of 1240	2856	procexp.exe	31
PID 2856 wrote to memory of 1240	2856	procexp.exe	31
PID 2856 wrote to memory of 1240	2856	procexp.exe	31
PID 2856 wrote to memory of 1240	2856	procexp.exe	31
PID 2856 wrote to memory of 1240	2856	procexp.exe	31
PID 2856 wrote to memory of 1240	2856	procexp.exe	31
PID 2856 wrote to memory of 1240	2856	procexp.exe	31
PID 2856 wrote to memory of 1240	2856	procexp.exe	31
PID 2856 wrote to memory of 1240	2856	procexp.exe	31
PID 2856 wrote to memory of 2148	2856	procexp.exe	32
PID 2856 wrote to memory of 2148	2856	procexp.exe	32
PID 2856 wrote to memory of 2148	2856	procexp.exe	32
PID 2856 wrote to memory of 2148	2856	procexp.exe	32
PID 2856 wrote to memory of 2148	2856	procexp.exe	32
PID 2856 wrote to memory of 2148	2856	procexp.exe	32
PID 2856 wrote to memory of 2148	2856	procexp.exe	32
PID 2856 wrote to memory of 2148	2856	procexp.exe	32
PID 2856 wrote to memory of 2148	2856	procexp.exe	32
PID 2856 wrote to memory of 2148	2856	procexp.exe	32
PID 2856 wrote to memory of 2148	2856	procexp.exe	32
PID 1076 wrote to memory of 1560	1076	AddInProcess32.exe	33
PID 1076 wrote to memory of 1560	1076	AddInProcess32.exe	33
PID 1076 wrote to memory of 1560	1076	AddInProcess32.exe	33
PID 1076 wrote to memory of 1560	1076	AddInProcess32.exe	33
PID 1076 wrote to memory of 1560	1076	AddInProcess32.exe	33
PID 1076 wrote to memory of 1560	1076	AddInProcess32.exe	33
PID 1076 wrote to memory of 1560	1076	AddInProcess32.exe	33
PID 1076 wrote to memory of 1560	1076	AddInProcess32.exe	33
PID 1076 wrote to memory of 1560	1076	AddInProcess32.exe	33
PID 1076 wrote to memory of 1560	1076	AddInProcess32.exe	33
PID 2148 wrote to memory of 2912	2148	AddInProcess32.exe	35
PID 2148 wrote to memory of 2912	2148	AddInProcess32.exe	35
PID 2148 wrote to memory of 2912	2148	AddInProcess32.exe	35
PID 2148 wrote to memory of 2912	2148	AddInProcess32.exe	35
PID 2912 wrote to memory of 2808	2912	cmd.exe	37
PID 2912 wrote to memory of 2808	2912	cmd.exe	37
PID 2912 wrote to memory of 2808	2912	cmd.exe	37
PID 2912 wrote to memory of 2808	2912	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\procexp.exe
"C:\Users\Admin\AppData\Local\Temp\procexp.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1076
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1560
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  PID:1240
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2148
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe" & rd /s /q "C:\ProgramData\R1D26XB16P8Q" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2912
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:2808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

Filesize
342B

MD5
d2320c828d81f00d938d044c2be7406b

SHA1
bc985c8bbec8efa7f21e33bc86906e7089ce51a3

SHA256
d4b0cb6c7a66df4f1b50e67c85eceba671339af618bb6c7d8e16d0fe0c80e557

SHA512
7ba9a46f619787dc082fc9a69debb2e089d7e1322906851eaea60374cd341b0e472e540ac05906c729cc701c4aa2783894abfe9587f77213f08c898143c1a236

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab63A.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar67B.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/1076-52-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/1076-59-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/1076-53-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/1076-30-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/1076-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1076-8-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/1076-19-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/1076-11-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/1076-9-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/1076-10-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/1076-15-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/1076-17-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/1076-16-0x0000000000400000-0x00000000004A2000-memory.dmp

Filesize
648KB

Download
memory/1076-18-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/1240-22-0x0000000000430000-0x0000000000669000-memory.dmp

Filesize
2.2MB

Download
memory/1240-24-0x0000000000430000-0x0000000000669000-memory.dmp

Filesize
2.2MB

Download
memory/1240-20-0x0000000000430000-0x0000000000669000-memory.dmp

Filesize
2.2MB

Download
memory/1240-27-0x0000000000430000-0x0000000000669000-memory.dmp

Filesize
2.2MB

Download
memory/1240-26-0x0000000000430000-0x0000000000669000-memory.dmp

Filesize
2.2MB

Download
memory/1240-25-0x0000000000430000-0x0000000000669000-memory.dmp

Filesize
2.2MB

Download
memory/1560-57-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1560-46-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1560-43-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1560-40-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1560-48-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1560-44-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1560-58-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2148-55-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/2148-54-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/2148-194-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/2148-193-0x0000000000400000-0x0000000000639000-memory.dmp

Filesize
2.2MB

Download
memory/2856-5-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/2856-6-0x0000000000640000-0x000000000065A000-memory.dmp

Filesize
104KB

Download
memory/2856-56-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/2856-7-0x0000000000540000-0x0000000000546000-memory.dmp

Filesize
24KB

Download
memory/2856-0-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

Filesize
4KB

Download
memory/2856-3-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/2856-2-0x00000000004A0000-0x00000000004E2000-memory.dmp

Filesize
264KB

Download
memory/2856-1-0x0000000000F80000-0x00000000014C6000-memory.dmp

Filesize
5.3MB

Download
memory/2856-4-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

Filesize
4KB

Download