nullmixer | fe1f876b7b9eee03c91b590b3ba9bd9eac4ec12e6a25ebeaff4eca8a162e995c

Analysis

max time kernel
145s
max time network
124s
platform
windows7_x64
resource
win7-20240319-en
resource tags

arch:x64arch:x86image:win7-20240319-enlocale:en-usos:windows7-x64system
submitted
08-04-2024 00:34

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General

Target

e63879fba2b04515e26910dcbee0b762_JaffaCakes118.exe
Size

1.5MB
MD5

e63879fba2b04515e26910dcbee0b762
SHA1

d0e5687c962e4f97e2534bc214a4daf1d16ae0f9
SHA256

fe1f876b7b9eee03c91b590b3ba9bd9eac4ec12e6a25ebeaff4eca8a162e995c
SHA512

0e50542d5a46d85d5a197735126b4502133dbdfbcbce8ef48918ce0068cc6d32ce96ed8c722fc49d956c323d10a6eeec9c11993f764c89e8964c6c54835f0af1
SSDEEP

24576:Eg5QIctJ4d8gTqo/2X0d9V53QGboKFYo37doV+mXMBCG6qz8iw1GhdN7dHR:EgPcmDP2XKAQ7more+aMopq8jGhdHHR

Score

10^/10

nullmixer smokeloader pub6 aspackv2 backdoor dropper evasion spyware stealer trojan

Malware Config

Extracted

Family

nullmixer

http://marisana.xyz/

Extracted

Family

smokeloader

Botnet

pub6

Signatures

Modifies Windows Defender Real-time Protection settings 3 TTPs 7 IoCs

evasion trojan

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	karotima_1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1"	karotima_1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRawWriteNotification = "1"	karotima_1.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	karotima_1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	karotima_1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	karotima_1.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	karotima_1.exe

NullMixer
NullMixer is a malware dropper leading to an infection chain of a wide variety of malware families.
dropper nullmixer
SmokeLoader
Modular backdoor trojan in use since 2014.
trojan backdoor smokeloader

ASPack v2.12-2.42 4 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x0007000000018a1b-30.dat	aspack_v212_v242
behavioral1/files/0x0007000000015d30-43.dat	aspack_v212_v242
behavioral1/files/0x0007000000015c63-47.dat	aspack_v212_v242
behavioral1/files/0x0009000000016b9e-51.dat	aspack_v212_v242

Executes dropped EXE 4 IoCs

pid	Process
2900	setup_installer.exe
2844	setup_install.exe
2116	karotima_2.exe
1092	karotima_1.exe

Loads dropped DLL 30 IoCs

pid	Process
2316	e63879fba2b04515e26910dcbee0b762_JaffaCakes118.exe
2900	setup_installer.exe
2900	setup_installer.exe
2900	setup_installer.exe
2900	setup_installer.exe
2900	setup_installer.exe
2900	setup_installer.exe
2844	setup_install.exe
2844	setup_install.exe
2844	setup_install.exe
2844	setup_install.exe
2844	setup_install.exe
2844	setup_install.exe
2844	setup_install.exe
2844	setup_install.exe
2980	cmd.exe
2924	cmd.exe
2980	cmd.exe
2116	karotima_2.exe
2116	karotima_2.exe
1092	karotima_1.exe
1092	karotima_1.exe
2116	karotima_2.exe
2896	WerFault.exe
2896	WerFault.exe
2896	WerFault.exe
1888	WerFault.exe
1888	WerFault.exe
1888	WerFault.exe
1888	WerFault.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Looks up external IP address via web service 4 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
3	ipinfo.io
4	ipinfo.io
9	api.db-ip.com
10	api.db-ip.com

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

System Information Discovery
T1082

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2896	2116	WerFault.exe	33
1888	2844	WerFault.exe	29

Suspicious use of WriteProcessMemory 56 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 2900	2316	e63879fba2b04515e26910dcbee0b762_JaffaCakes118.exe	28
PID 2316 wrote to memory of 2900	2316	e63879fba2b04515e26910dcbee0b762_JaffaCakes118.exe	28
PID 2316 wrote to memory of 2900	2316	e63879fba2b04515e26910dcbee0b762_JaffaCakes118.exe	28
PID 2316 wrote to memory of 2900	2316	e63879fba2b04515e26910dcbee0b762_JaffaCakes118.exe	28
PID 2316 wrote to memory of 2900	2316	e63879fba2b04515e26910dcbee0b762_JaffaCakes118.exe	28
PID 2316 wrote to memory of 2900	2316	e63879fba2b04515e26910dcbee0b762_JaffaCakes118.exe	28
PID 2316 wrote to memory of 2900	2316	e63879fba2b04515e26910dcbee0b762_JaffaCakes118.exe	28
PID 2900 wrote to memory of 2844	2900	setup_installer.exe	29
PID 2900 wrote to memory of 2844	2900	setup_installer.exe	29
PID 2900 wrote to memory of 2844	2900	setup_installer.exe	29
PID 2900 wrote to memory of 2844	2900	setup_installer.exe	29
PID 2900 wrote to memory of 2844	2900	setup_installer.exe	29
PID 2900 wrote to memory of 2844	2900	setup_installer.exe	29
PID 2900 wrote to memory of 2844	2900	setup_installer.exe	29
PID 2844 wrote to memory of 2924	2844	setup_install.exe	31
PID 2844 wrote to memory of 2924	2844	setup_install.exe	31
PID 2844 wrote to memory of 2924	2844	setup_install.exe	31
PID 2844 wrote to memory of 2924	2844	setup_install.exe	31
PID 2844 wrote to memory of 2924	2844	setup_install.exe	31
PID 2844 wrote to memory of 2924	2844	setup_install.exe	31
PID 2844 wrote to memory of 2924	2844	setup_install.exe	31
PID 2844 wrote to memory of 2980	2844	setup_install.exe	32
PID 2844 wrote to memory of 2980	2844	setup_install.exe	32
PID 2844 wrote to memory of 2980	2844	setup_install.exe	32
PID 2844 wrote to memory of 2980	2844	setup_install.exe	32
PID 2844 wrote to memory of 2980	2844	setup_install.exe	32
PID 2844 wrote to memory of 2980	2844	setup_install.exe	32
PID 2844 wrote to memory of 2980	2844	setup_install.exe	32
PID 2980 wrote to memory of 2116	2980	cmd.exe	33
PID 2980 wrote to memory of 2116	2980	cmd.exe	33
PID 2980 wrote to memory of 2116	2980	cmd.exe	33
PID 2980 wrote to memory of 2116	2980	cmd.exe	33
PID 2980 wrote to memory of 2116	2980	cmd.exe	33
PID 2980 wrote to memory of 2116	2980	cmd.exe	33
PID 2980 wrote to memory of 2116	2980	cmd.exe	33
PID 2924 wrote to memory of 1092	2924	cmd.exe	34
PID 2924 wrote to memory of 1092	2924	cmd.exe	34
PID 2924 wrote to memory of 1092	2924	cmd.exe	34
PID 2924 wrote to memory of 1092	2924	cmd.exe	34
PID 2924 wrote to memory of 1092	2924	cmd.exe	34
PID 2924 wrote to memory of 1092	2924	cmd.exe	34
PID 2924 wrote to memory of 1092	2924	cmd.exe	34
PID 2116 wrote to memory of 2896	2116	karotima_2.exe	35
PID 2116 wrote to memory of 2896	2116	karotima_2.exe	35
PID 2116 wrote to memory of 2896	2116	karotima_2.exe	35
PID 2116 wrote to memory of 2896	2116	karotima_2.exe	35
PID 2116 wrote to memory of 2896	2116	karotima_2.exe	35
PID 2116 wrote to memory of 2896	2116	karotima_2.exe	35
PID 2116 wrote to memory of 2896	2116	karotima_2.exe	35
PID 2844 wrote to memory of 1888	2844	setup_install.exe	36
PID 2844 wrote to memory of 1888	2844	setup_install.exe	36
PID 2844 wrote to memory of 1888	2844	setup_install.exe	36
PID 2844 wrote to memory of 1888	2844	setup_install.exe	36
PID 2844 wrote to memory of 1888	2844	setup_install.exe	36
PID 2844 wrote to memory of 1888	2844	setup_install.exe	36
PID 2844 wrote to memory of 1888	2844	setup_install.exe	36

C:\Users\Admin\AppData\Local\Temp\e63879fba2b04515e26910dcbee0b762_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e63879fba2b04515e26910dcbee0b762_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Users\Admin\AppData\Local\Temp\setup_installer.exe
  "C:\Users\Admin\AppData\Local\Temp\setup_installer.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Users\Admin\AppData\Local\Temp\7zS45BCFF66\setup_install.exe
    "C:\Users\Admin\AppData\Local\Temp\7zS45BCFF66\setup_install.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:2844
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c karotima_1.exe
      4⤵
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:2924
    - - C:\Users\Admin\AppData\Local\Temp\7zS45BCFF66\karotima_1.exe
        
        karotima_1.exe
        5⤵
        Modifies Windows Defender Real-time Protection settings
        Executes dropped EXE
        Loads dropped DLL
        
        PID:1092
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c karotima_2.exe
      4⤵
      Loads dropped DLL
      Suspicious use of WriteProcessMemory
      PID:2980
    - - C:\Users\Admin\AppData\Local\Temp\7zS45BCFF66\karotima_2.exe
        
        karotima_2.exe
        5⤵
        Executes dropped EXE
        Loads dropped DLL
        Suspicious use of WriteProcessMemory
        
        PID:2116
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 268
        6⤵
        Loads dropped DLL
        Program crash
        
        PID:2896
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2844 -s 372
      4⤵
      Loads dropped DLL
      Program crash
      PID:1888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\7zS45BCFF66\karotima_1.txt

Filesize
1.0MB

MD5
9108ad5775c76cccbb4eadf02de24f5d

SHA1
82996bc4f72b3234536d0b58630d5d26bcf904b0

SHA256
c9d5525b2f2b76087121039ee1c23ed35508e60f653479722ec64ea3a064878e

SHA512
19021a28555bba1fe1bdcdc8845f1bcadebd256c7db02b9329d6b44ae01a123a00e162cc34a97ba51f088cafa6f54ab1de8f82f771ac54b94a3a796f84f73362

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS45BCFF66\karotima_2.txt

Filesize
325KB

MD5
2adf1986be67af56f5bfe1b9b857bdaa

SHA1
4336779d7127ea074a561632bc838b94e460a0f1

SHA256
1c83bfcca6d10cdb603db804212d2ff60a478cbdd3c8547636e733a1e2bae28d

SHA512
c86ffccffdc0378bd5241ca8ebbb7b0ac94901feaa37f53757d290c8785d15bdb75c837e93e88c57e597cbacdb7d2ceac8af992091fee35e2934afbfcd2424f7

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS45BCFF66\libcurlpp.dll

Filesize
54KB

MD5
e6e578373c2e416289a8da55f1dc5e8e

SHA1
b601a229b66ec3d19c2369b36216c6f6eb1c063e

SHA256
43e86d650a68f1f91fa2f4375aff2720e934aa78fa3d33e06363122bf5a9535f

SHA512
9df6a8c418113a77051f6cb02745ad48c521c13cdadb85e0e37f79e29041464c8c7d7ba8c558fdd877035eb8475b6f93e7fc62b38504ddfe696a61480cabac89

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS45BCFF66\libstdc++-6.dll

Filesize
647KB

MD5
5e279950775baae5fea04d2cc4526bcc

SHA1
8aef1e10031c3629512c43dd8b0b5d9060878453

SHA256
97de47068327bb822b33c7106f9cbb489480901a6749513ef5c31d229dcaca87

SHA512
666325e9ed71da4955058aea31b91e2e848be43211e511865f393b7f537c208c6b31c182f7d728c2704e9fc87e7d1be3f98f5fee4d34f11c56764e1c599afd02

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zS45BCFF66\setup_install.exe

Filesize
287KB

MD5
167b6f10cee0c2c4c447bed32c25763c

SHA1
e4d5917ce31562b277f21b8de7db67268fd6fcab

SHA256
0f49fa82f75881c9542ff6ca181e941385b8f6c99df1599e8ff94ea894c1b1cc

SHA512
2501438ab805ef1375510cea854adf7eccfc89f273cf1f92e4a3f1d2764d5ba6ec773702ec7ba3217f5b62d234b1bb7c603a64a07430c96355e4701785d30314

Download Submit
\Users\Admin\AppData\Local\Temp\7zS45BCFF66\libcurl.dll

Filesize
218KB

MD5
d09be1f47fd6b827c81a4812b4f7296f

SHA1
028ae3596c0790e6d7f9f2f3c8e9591527d267f7

SHA256
0de53e7be51789adaec5294346220b20f793e7f8d153a3c110a92d658760697e

SHA512
857f44a1383c29208509b8f1164b6438d750d5bb4419add7626986333433e67a0d1211ec240ce9472f30a1f32b16c8097aceba4b2255641b3d8928f94237f595

Download Submit
\Users\Admin\AppData\Local\Temp\7zS45BCFF66\libgcc_s_dw2-1.dll

Filesize
113KB

MD5
9aec524b616618b0d3d00b27b6f51da1

SHA1
64264300801a353db324d11738ffed876550e1d3

SHA256
59a466f77584438fc3abc0f43edc0fc99d41851726827a008841f05cfe12da7e

SHA512
0648a26940e8f4aad73b05ad53e43316dd688e5d55e293cce88267b2b8744412be2e0d507dadad830776bf715bcd819f00f5d1f7ac1c5f1c4f682fb7457a20d0

Download Submit
\Users\Admin\AppData\Local\Temp\7zS45BCFF66\libwinpthread-1.dll

Filesize
69KB

MD5
1e0d62c34ff2e649ebc5c372065732ee

SHA1
fcfaa36ba456159b26140a43e80fbd7e9d9af2de

SHA256
509cb1d1443b623a02562ac760bced540e327c65157ffa938a22f75e38155723

SHA512
3653f8ed8ad3476632f731a3e76c6aae97898e4bf14f70007c93e53bc443906835be29f861c4a123db5b11e0f3dd5013b2b3833469a062060825df9ee708dc61

Download Submit
\Users\Admin\AppData\Local\Temp\CC4F.tmp

Filesize
1.2MB

MD5
d124f55b9393c976963407dff51ffa79

SHA1
2c7bbedd79791bfb866898c85b504186db610b5d

SHA256
ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef

SHA512
278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

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

Filesize
1.5MB

MD5
0f41960ecdfd8c135bbcb2c4ed24d97b

SHA1
6c8e64a1a0f24d3b5ba22a68d66b89efe00d2c4f

SHA256
27aa9ce88cff72abef8c47ed9e65e8e38ba7b05395cae0f898c6b6f0608912cf

SHA512
c3cd88816ec20c69c66016f4989dcda8c3f12bb3188c355ada4be89b8bb984e18c471892712a6fca8f1089c61b2d4bb9a4fc09e92b70c9471fd72fe9cd93e01d

Download Submit
memory/2116-89-0x0000000000240000-0x0000000000249000-memory.dmp

Filesize
36KB

Download
memory/2116-88-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/2116-116-0x0000000000240000-0x0000000000249000-memory.dmp

Filesize
36KB

Download
memory/2116-115-0x00000000005C0000-0x00000000006C0000-memory.dmp

Filesize
1024KB

Download
memory/2116-107-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/2116-90-0x0000000000400000-0x000000000046B000-memory.dmp

Filesize
428KB

Download
memory/2844-65-0x000000006FE40000-0x000000006FFC6000-memory.dmp

Filesize
1.5MB

Download
memory/2844-49-0x000000006B440000-0x000000006B4CF000-memory.dmp

Filesize
572KB

Download
memory/2844-64-0x000000006FE40000-0x000000006FFC6000-memory.dmp

Filesize
1.5MB

Download
memory/2844-46-0x000000006B280000-0x000000006B2A6000-memory.dmp

Filesize
152KB

Download
memory/2844-68-0x000000006B280000-0x000000006B2A6000-memory.dmp

Filesize
152KB

Download
memory/2844-70-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-69-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-67-0x000000006B280000-0x000000006B2A6000-memory.dmp

Filesize
152KB

Download
memory/2844-66-0x000000006FE40000-0x000000006FFC6000-memory.dmp

Filesize
1.5MB

Download
memory/2844-62-0x000000006FE40000-0x000000006FFC6000-memory.dmp

Filesize
1.5MB

Download
memory/2844-71-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-72-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-73-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-74-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-75-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-63-0x000000006FE40000-0x000000006FFC6000-memory.dmp

Filesize
1.5MB

Download
memory/2844-40-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-57-0x000000006FE40000-0x000000006FFC6000-memory.dmp

Filesize
1.5MB

Download
memory/2844-58-0x000000006B440000-0x000000006B4CF000-memory.dmp

Filesize
572KB

Download
memory/2844-59-0x000000006B440000-0x000000006B4CF000-memory.dmp

Filesize
572KB

Download
memory/2844-60-0x0000000064940000-0x0000000064959000-memory.dmp

Filesize
100KB

Download
memory/2844-101-0x0000000000400000-0x000000000051E000-memory.dmp

Filesize
1.1MB

Download
memory/2844-102-0x0000000064940000-0x0000000064959000-memory.dmp

Filesize
100KB

Download
memory/2844-104-0x000000006B440000-0x000000006B4CF000-memory.dmp

Filesize
572KB

Download
memory/2844-105-0x000000006EB40000-0x000000006EB63000-memory.dmp

Filesize
140KB

Download
memory/2844-103-0x000000006B280000-0x000000006B2A6000-memory.dmp

Filesize
152KB

Download
memory/2844-106-0x000000006FE40000-0x000000006FFC6000-memory.dmp

Filesize
1.5MB

Download
memory/2844-61-0x000000006B440000-0x000000006B4CF000-memory.dmp

Filesize
572KB

Download
memory/2900-31-0x0000000002530000-0x000000000264E000-memory.dmp

Filesize
1.1MB

Download
memory/2900-38-0x0000000002540000-0x000000000265E000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads