zloader | f1bbcc5c678d174d858ae089f4494e3ea8bcfc418098d61804a15e437f08aff7

Resubmissions

03-07-2024 22:59

240703-2yn7wszhlp 10

03-07-2024 16:13

03-07-2024 16:11

10-05-2024 16:25

24-08-2023 11:16

05-08-2023 22:52

Analysis

max time kernel
1799s
max time network
1807s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
03-07-2024 16:13

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General

Target

08751be484e1572995ebb085df1c2c6372084d63a64dce7fab28130d79a6ea2d.dll
Size

144KB
MD5

9e9bb42a965b89a9dce86c8b36b24799
SHA1

e2d1161ac7fa3420648ba59f7a5315ed0acb04c2
SHA256

08751be484e1572995ebb085df1c2c6372084d63a64dce7fab28130d79a6ea2d
SHA512

e5ba20e364c96260c821bc61eab51906e2075aa0d3755ef25aabfc8f6f9545452930be42d978d96e3a68e2b92120df4940b276c9872ebf36fa50913523c51ce8
SSDEEP

3072:ep1qwbk6Wbh/UR++pz1OBrNtZtHpspurmxwPtnneZY:epoP6WV/C116rNbtHpsYrmSP1neZY

Score

10^/10

zloader botnet persistence trojan

Malware Config

Signatures

Zloader, Terdot, DELoader, ZeusSphinx
Zloader is a malware strain that was initially discovered back in August 2015.
trojan botnet zloader

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2812790648-3157963462-487717889-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ighiib = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\Huibby\\cebyafob.dll,DllRegisterServer"	msiexec.exe

Blocklisted process makes network request 8 IoCs

Processes:

msiexec.exe

flow	pid	process
9	2888	msiexec.exe
11	2888	msiexec.exe
15	2888	msiexec.exe
18	2888	msiexec.exe
20	2888	msiexec.exe
23	2888	msiexec.exe
27	2888	msiexec.exe
30	2888	msiexec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

regsvr32.exe

description pid process target process

PID 3052 set thread context of 2888 3052 regsvr32.exe msiexec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

msiexec.exe

description pid process

Token: SeSecurityPrivilege 2888 msiexec.exe
Token: SeSecurityPrivilege 2888 msiexec.exe

description	pid	process	target process
PID 3052 set thread context of 2888	3052	regsvr32.exe	msiexec.exe

description	pid	process
Token: SeSecurityPrivilege	2888	msiexec.exe
Token: SeSecurityPrivilege	2888	msiexec.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

regsvr32.exeregsvr32.exe

description	pid	process	target process
PID 2996 wrote to memory of 3052	2996	regsvr32.exe	regsvr32.exe
PID 2996 wrote to memory of 3052	2996	regsvr32.exe	regsvr32.exe
PID 2996 wrote to memory of 3052	2996	regsvr32.exe	regsvr32.exe
PID 2996 wrote to memory of 3052	2996	regsvr32.exe	regsvr32.exe
PID 2996 wrote to memory of 3052	2996	regsvr32.exe	regsvr32.exe
PID 2996 wrote to memory of 3052	2996	regsvr32.exe	regsvr32.exe
PID 2996 wrote to memory of 3052	2996	regsvr32.exe	regsvr32.exe
PID 3052 wrote to memory of 2888	3052	regsvr32.exe	msiexec.exe
PID 3052 wrote to memory of 2888	3052	regsvr32.exe	msiexec.exe
PID 3052 wrote to memory of 2888	3052	regsvr32.exe	msiexec.exe
PID 3052 wrote to memory of 2888	3052	regsvr32.exe	msiexec.exe
PID 3052 wrote to memory of 2888	3052	regsvr32.exe	msiexec.exe
PID 3052 wrote to memory of 2888	3052	regsvr32.exe	msiexec.exe
PID 3052 wrote to memory of 2888	3052	regsvr32.exe	msiexec.exe
PID 3052 wrote to memory of 2888	3052	regsvr32.exe	msiexec.exe
PID 3052 wrote to memory of 2888	3052	regsvr32.exe	msiexec.exe

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\08751be484e1572995ebb085df1c2c6372084d63a64dce7fab28130d79a6ea2d.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2996

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\08751be484e1572995ebb085df1c2c6372084d63a64dce7fab28130d79a6ea2d.dll
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3052

C:\Windows\SysWOW64\msiexec.exe
msiexec.exe
3⤵
- Adds Run key to start application
- Blocklisted process makes network request
- Suspicious use of AdjustPrivilegeToken
PID:2888

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab3507.tmp
Filesize
67KB

MD5
2d3dcf90f6c99f47e7593ea250c9e749

SHA1
51be82be4a272669983313565b4940d4b1385237

SHA256
8714e7be9f9b6de26673d9d09bd4c9f41b1b27ae10b1d56a7ad83abd7430ebd4

SHA512
9c11dd7d448ffebe2167acde37be77d42175edacf5aaf6fb31d3bdfe6bb1f63f5fdbc9a0a2125ed9d5ce0529b6b548818c8021532e1ea6b324717cc9bec0aaa5

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar6E95.tmp
Filesize
160KB

MD5
7186ad693b8ad9444401bd9bcd2217c2

SHA1
5c28ca10a650f6026b0df4737078fa4197f3bac1

SHA256
9a71fa0cb44aa51412b16a0bf83a275977ba4e807d022f78364338b99b3a3eed

SHA512
135be0e6370fd057762c56149526f46bf6a62fb65ef5b3b26ae01fa07b4c4e37188e203bd3812f31e260ec5cccff5924633dd55ab17e9fa106479783c2fb212b

Download Submit
memory/2888-0-0x0000000000090000-0x00000000000B5000-memory.dmp

Filesize
148KB

Download
memory/2888-1-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2888-3-0x0000000000090000-0x00000000000B5000-memory.dmp

Filesize
148KB

Download