lumma | aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4

General

Target

Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe
Size

5.9MB
MD5

8e9ea8e0e87ddaecdbb57823ead16033
SHA1

55a9f08b8cb50a2712f74ade216571f823c0a1fd
SHA256

aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4
SHA512

340318b2a5e170e886161cfb4576beb6dac2f478dc872c29d89be549c1dc29ed9c612540e4c14b004910d139c490f5f0a235f150fa91cb2c62f66c0e12f6a9bb
SSDEEP

98304:h2VWpbVhslST57nFGCGpNjLr9Bp7QSL4Jfgvklfl3ayZbaShUbO5kuNEJ/e6BiM:h2VWalSFLJG73rGgMJl3baE3iJmei

Score

10^/10

lumma discovery evasion stealer

Malware Config

Extracted

Family

lumma

Signatures

Lumma Stealer, LummaC
Lumma or LummaC is an infostealer written in C++ first seen in August 2022.
stealer lumma
Lumma family
lumma

Enumerates VirtualBox registry keys 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF	Set-up.exe

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe

Executes dropped EXE 2 IoCs

pid	Process
2604	LummaC2.exe
2628	Set-up.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Wine	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe

Loads dropped DLL 7 IoCs

pid	Process
2800	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe
2800	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe
2800	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe
2800	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe
1864	WerFault.exe
1864	WerFault.exe
1864	WerFault.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2800	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe

Embeds OpenSSL 1 IoCs

Embeds OpenSSL, may be used to circumvent TLS interception.

resource	yara_rule
behavioral1/files/0x003500000001662e-15.dat	embeds_openssl

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1864	2628	WerFault.exe	32

System Location Discovery: System Language Discovery 1 TTPs 3 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	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	LummaC2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Set-up.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2800	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe
2628	Set-up.exe
2628	Set-up.exe
2628	Set-up.exe
2628	Set-up.exe
2628	Set-up.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2800 wrote to memory of 2604	2800	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe	31
PID 2800 wrote to memory of 2604	2800	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe	31
PID 2800 wrote to memory of 2604	2800	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe	31
PID 2800 wrote to memory of 2604	2800	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe	31
PID 2800 wrote to memory of 2628	2800	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe	32
PID 2800 wrote to memory of 2628	2800	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe	32
PID 2800 wrote to memory of 2628	2800	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe	32
PID 2800 wrote to memory of 2628	2800	Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe	32
PID 2628 wrote to memory of 1864	2628	Set-up.exe	33
PID 2628 wrote to memory of 1864	2628	Set-up.exe	33
PID 2628 wrote to memory of 1864	2628	Set-up.exe	33
PID 2628 wrote to memory of 1864	2628	Set-up.exe	33

C:\Users\Admin\AppData\Local\Temp\Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe
"C:\Users\Admin\AppData\Local\Temp\Sigmanly_aea1e74825e2d187e04a81bb5ce56593f5769c4b86218e5fc820d900801abdb4.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Users\Admin\AppData\Local\Temp\LummaC2.exe
  "C:\Users\Admin\AppData\Local\Temp\LummaC2.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2604
- C:\Users\Admin\AppData\Local\Temp\Set-up.exe
  "C:\Users\Admin\AppData\Local\Temp\Set-up.exe"
  2⤵
  - Enumerates VirtualBox registry keys
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2628
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2628 -s 464
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:1864

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

3

T1497

Credential Access

Discovery

Query Registry

5

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

3

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Cab48C5.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar48E7.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
\Users\Admin\AppData\Local\Temp\LummaC2.exe

Filesize
292KB

MD5
607000c61fcb5a41b8d511b5ed7625d4

SHA1
dfaa2bfea8a51b14ac089bb6a39f037e769169d1

SHA256
c9831759e15b3a52238c03d0d51db9de0c1a6c7a61a51de72c5869061172e9db

SHA512
64940f02635ccbc2dcd42449c0c435a6a50bd00fa93d6e2e161371cdc766103ef858ccbaae4497a75576121ea7bc25ba54a9064748f9d6676989a4c9f8b50e58

Download Submit
\Users\Admin\AppData\Local\Temp\Set-up.exe

Filesize
6.5MB

MD5
2a99036c44c996cedeb2042d389fe23c

SHA1
4f1e624bcc030e44722de26b72c8156bf57e14e8

SHA256
73aa5ee19f0ea048dcff2f44d6fd5ac41c13e2d7e61371459e756836f72cad43

SHA512
6907cd0e47293c8c96345ed00f2f3fa2241ce1671ee73a599837857bfb39f6c7e373aad843cc78fb550d2db10bdfe066a021cec4c8a49aecdf06a7e71edadedd

Download Submit
memory/2628-24-0x0000000000190000-0x0000000000820000-memory.dmp

Filesize
6.6MB

Download
memory/2628-62-0x0000000000190000-0x0000000000820000-memory.dmp

Filesize
6.6MB

Download
memory/2628-68-0x0000000000190000-0x0000000000820000-memory.dmp

Filesize
6.6MB

Download
memory/2800-0-0x0000000001060000-0x0000000001BA0000-memory.dmp

Filesize
11.2MB

Download
memory/2800-1-0x0000000001060000-0x0000000001BA0000-memory.dmp

Filesize
11.2MB

Download
memory/2800-2-0x0000000001060000-0x0000000001BA0000-memory.dmp

Filesize
11.2MB

Download
memory/2800-23-0x0000000001060000-0x0000000001BA0000-memory.dmp

Filesize
11.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads