guloader | c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
05-12-2024 15:50

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General

Target

c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe
Size

1016KB
MD5

2b78431a8969c829339ed0da29004757
SHA1

c09051c5f433348c6cf5b5c0781af877f44212d2
SHA256

c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a
SHA512

3530aaad10469254279ffd782e61d4254cb73f5b9c2527f1a4a38f0424d5acb3a860d29b7ed9b4b619a98ab3b20742f0c3705321afb026b4b6e8c57dc052fabf
SSDEEP

24576:+o8RUr/5+1g8UJT4l8at7kEeTg/ITSZOG+1Mjb2WsQbd38TRAn9:+h+/0S8S0OeXITSI1Mjvsa4i9

Score

10^/10

guloader discovery downloader

Malware Config

Signatures

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

Loads dropped DLL 2 IoCs

pid	Process
2068	c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe
2068	c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\lamellate.ini	c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2068	c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe
1336	c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2068 set thread context of 1336	2068	c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe	31

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 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	c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2068	c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2068 wrote to memory of 1336	2068	c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe	31
PID 2068 wrote to memory of 1336	2068	c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe	31
PID 2068 wrote to memory of 1336	2068	c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe	31
PID 2068 wrote to memory of 1336	2068	c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe	31
PID 2068 wrote to memory of 1336	2068	c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe	31
PID 2068 wrote to memory of 1336	2068	c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe	31

C:\Users\Admin\AppData\Local\Temp\c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe
"C:\Users\Admin\AppData\Local\Temp\c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2068
- C:\Users\Admin\AppData\Local\Temp\c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe
  "C:\Users\Admin\AppData\Local\Temp\c10aac838dd326d74fcc69eeae41117036ac26b858285fa0da034cba44762f7a.exe"
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  PID:1336

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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:\ProgramData\ankomstperrons.ini

Filesize
42B

MD5
276d6e1d94791e4bc828a3b5f04a73ea

SHA1
4665fd1d7598d3d751b5232bbb0859123d79a3be

SHA256
812a9fcaacc7a28eba4fa5edb16ae49dd9bbfecfc112e5957c984bc4a50f7304

SHA512
f8a6f577de29f60997eab5f032c6caf6c2565c8e018eddd88900dff17062cca7d2b6ba30844f8a7a0db4759056481f6c1d290c99378e8c540031b3c3e008e8de

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsdB89A.tmp

Filesize
2B

MD5
25bc6654798eb508fa0b6343212a74fe

SHA1
15d5e1d3b948fd5986aaff7d9419b5e52c75fc93

SHA256
8e5202705183bd3a20a29e224499b0f77a8273ee33cd93cca71043c57ad4bdfc

SHA512
5868c6241ed3cfcc5c34bfe42e4b9f5c69e74975e524771d8c9f35cafc13fd01cd943ec4d8caefee79a1f4a457e69d20b7a86f88db83a5bc3e6bd8a619972898

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsdB89A.tmp

Filesize
3B

MD5
4e27f2226785e9abbe046fc592668860

SHA1
28b18a7f383131df509f7191f946a32c5a2e410c

SHA256
01a219245e1501fee01ce0baea8f6065ce5162cea12fa570689a07c9717be81d

SHA512
2a23585835bdb5db8175cab265566042282841efdcee8aaba8b9b5d466b0f165c0c5973033ce94bb9a8f07a956689247981ea07ac5a51408263e1653d9710adb

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsdB89A.tmp

Filesize
4B

MD5
cde63b34c142af0a38cbe83791c964f8

SHA1
ece2b194b486118b40ad12c1f0e9425dd0672424

SHA256
65e2d70166c9a802b7ad2a87129b8945f083e5f268878790a9d1f1c03f47938d

SHA512
0559d3d34ad64ccc27e685431c24fc6ead0f645db14fa0e125a64fb67dbd158c15432c1fc5407811aac8a3486090dfbcfcbc3c6bf5aa0ec73f979ef62d14853c

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsdB89A.tmp

Filesize
6B

MD5
50484c19f1afdaf3841a0d821ed393d2

SHA1
c65a0fb7e74ffd2c9fc3a0f9aacb0f6a24b0a68b

SHA256
6923dd1bc0460082c5d55a831908c24a282860b7f1cd6c2b79cf1bc8857c639c

SHA512
d51a20d67571fe70bcd6c36e1382a3c342f42671c710090b75fcfc2405ce24488e03a7131eefe4751d0bd3aeaad816605ad10c8e3258d72fcf379e32416cbf3b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsdB89A.tmp

Filesize
7B

MD5
67cfa7364c4cf265b047d87ff2e673ae

SHA1
56e27889277981a9b63fcf5b218744a125bbc2fa

SHA256
639b68bd180b47d542dd001d03557ee2d5b3065c3c783143bc9fb548f3fd7713

SHA512
17f28a136b20b89e9c3a418b08fd8e6fcaac960872dc33b2481af2d872efc44228f420759c57724f5d953c7ba98f2283e2acc7dfe5a58cbf719c6480ec7a648b

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsdB89A.tmp

Filesize
8B

MD5
c3cb69218b85c3260387fb582cb518dd

SHA1
961c892ded09a4cbb5392097bb845ccba65902ad

SHA256
1c329924865741e0222d3ead23072cfbed14f96e2b0432573068eb0640513101

SHA512
2402fffeb89c531db742bf6f5466eee8fe13edf97b8ecfc2cace3522806b322924d1ca81dda25e59b4047b8f40ad11ae9216e0a0d5c7fc6beef4368eb9551422

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsdB89A.tmp

Filesize
10B

MD5
9a53fc1d7126c5e7c81bb5c15b15537b

SHA1
e2d13e0fa37de4c98f30c728210d6afafbb2b000

SHA256
a7de06c22e4e67908840ec3f00ab8fe9e04ae94fb16a74136002afbaf607ff92

SHA512
b0bffbb8072dbdcfc68f0e632f727c08fe3ef936b2ef332c08486553ff2cef7b0bcdb400e421a117e977bb0fac17ce4706a8097e32d558a918433646b6d5f1a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\nsdB89A.tmp

Filesize
11B

MD5
f9e81875c2ac80cd228ff7615d6e6183

SHA1
bc60a68ab8522806b30affd832b5866643ec2031

SHA256
54d26d86b2ebde0a52271df5d2bcc911d881ada35d5716076d0411672f78e7b1

SHA512
6173811b6e692e85ac091f9e53ad9e392dc9853087756dae6907ae45b73704c1084ad64bb9730871b6f7dd16d871dfcf089fcf19746cbee68b783a691937d1d7

Download Submit
C:\Users\Admin\forvredet.lnk

Filesize
1KB

MD5
e02f26ae941443de8ef69896576b5159

SHA1
1efa8d9fdbc115d40bc227691175ddd964116282

SHA256
4f06ae6ddaadc053ea1f7fb55aec2352417c432c70ba1764c52cf69e7cba5153

SHA512
a1f008e76fc1436eb2d8d0832a2f99a0fa0d20069d8a651a3e4c388a3f43bc4ed65dba2514cf8e48bce9ff2a320696082738a1e9dc84a8213df66104ca618db9

Download Submit
\Users\Admin\AppData\Local\Temp\nsjB426.tmp\System.dll

Filesize
11KB

MD5
3f176d1ee13b0d7d6bd92e1c7a0b9bae

SHA1
fe582246792774c2c9dd15639ffa0aca90d6fd0b

SHA256
fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e

SHA512
0a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6

Download Submit
memory/1336-1123-0x00000000777B0000-0x0000000077959000-memory.dmp

Filesize
1.7MB

Download
memory/1336-1125-0x0000000000490000-0x00000000014F2000-memory.dmp

Filesize
16.4MB

Download
memory/2068-1119-0x00000000041B0000-0x000000000508F000-memory.dmp

Filesize
14.9MB

Download
memory/2068-1120-0x00000000777B1000-0x00000000778B2000-memory.dmp

Filesize
1.0MB

Download
memory/2068-1121-0x00000000777B0000-0x0000000077959000-memory.dmp

Filesize
1.7MB

Download
memory/2068-1122-0x00000000041B0000-0x000000000508F000-memory.dmp

Filesize
14.9MB

Download
memory/2068-1124-0x00000000041B0000-0x000000000508F000-memory.dmp

Filesize
14.9MB

Download